Today: First public presentation of photos from the Webb Space telescope

February 7, 2023 • 7:30 am

Reader Sue called my attention to this event, which you can watch free simply by registering (name and email will suffice).  You’ll get a quick email back with the link. Click below to register and see some details:

It’s TODAY at these times:

7-8:30 p.m. Eastern time

6-7:30 p.m. Chicago (Central) time

4-5:30 p.m. Pacific time

And the format:

Professor of astronomy Alex Filippenko explores the first stunning images from NASA’s James Webb Space Telescope. Now at its destination one million miles from Earth, the 21-foot-diameter telescope was launched in December 2021.

Alex Filippenko is a Distinguished Professor of Astronomy at UC, Berkeley.

Presented in partnership with Wonderfest: The Bay Area Beacon of Science.

You’ll want to watch it if you’re available!

Readers’ wildlife photos

January 7, 2023 • 8:15 am

Send in your photos! I am sweating blood!

Two batches today: stars ‘n’ squirrels.  First, the three star photos come from Tim Anderson.  Click the photos to enlarge them:

M42, the Orion Nebula:

NGC3372, the Carina Nebula and NGC3532, the Wishing Well Star Cluster

And squirrel photos from Mary Barbara Vance Wilson:

I hit the cute diurnal squirrel trifecta at Collier State Park in Klamath County, Oregon, earlier in September 14Golden-mantled Ground Squirrels (Callopermophilus lateralis) are common sights in western parks.  These were busy stashing food for the winter.  They are often confused with chipmunks, which are smaller and have facial stripes.
The Yellow-Pine Chipmunk (Neotamias amoenus), one of the smallest chipmunks, were dashing so fast across the ground, up tree trunks, and over historic logging machinery that getting a photo was difficult.
The Douglas Squirrel  (Tamiasciurus douglasii) is only about as big as the ground squirrels but lacks stripes except for a short bar on the side.  It spends more time in the trees than the other two.

The controversy continues about naming the Webb Space Telescope; the woke won’t give up in the face of the facts

December 20, 2022 • 10:00 am

This article in a recent New York Times tells a sad tale of the vindictiveness of scientific ideologues and their determination to gain control over science by flaunting their own victim status, as well as by blatantly ignoring the truth. It involves the naming of the James Webb Space Telescope (JWST) over the objections of people who asserted, wrongly, that Webb was a homophobe who fired gay people from NASA and the government (he was administrator of the organization from 1961-1968, and before that the Undersecretary of State from 1949 to 1952).

Click to read the article; if it’s paywalled, judicious inquiry will yield a copy. This is a piece worth reading, and shows that the NYT is not completely woke, for the piece gives an evenhanded story that winds up putting the woke in a pretty bad light.

For a long time, ideologues have criticized the name of the telescope, demanding it be changed (NASA refused to change it). The kvetchers argued that Webb, as both Undersecretary of State and NASA administrator, helped fire gay scientists under orders from people higher in the government. This all stemmed from an executive order issued by President Eisenhower in 1953 barring gay Americans from working for the federal government—an order that wasn’t formally rescinded until Bill Clinton barred job discrimination based on sexual orientation in 1998.

During this period, between 5,000 and 10,000 gay employees were booted out of government jobs. The allegations about Webb arose when NASA decided to name the space telescope after him, claiming that he was complicit in this firing.  But extensive delving into the historical record by several people and agencies shows that these allegations were false. From the NYT (all quotes indented):

Hakeem Oluseyi, who is now the president of the National Society of Black Physicists, was sympathetic to these critics. Then he delved into archives and talked to historians and wrote a carefully sourced essay in Medium in 2021 that laid out his surprising findings.

“I can say conclusively,” Dr. Oluseyi wrote, “that there is zero evidence that Webb is guilty of the allegations against him.”

That, he figured, would be that. He was wrong.

The struggle over the naming of the world’s most powerful space telescope has grown yet more contentious and bitter. In November, NASA sought to douse this fire. Its chief historian, Brian Odom, issued an 89-page report that echoed Dr. Oluseyi’s research and concluded the accusations against Mr. Webb were misplaced.

NASA acknowledged that the federal government at that time “shamefully promoted” discrimination against gay employees. But Mr. Odom concluded: “No available evidence directly links Webb to any actions or follow-up related to the firing of individuals for their sexual orientation.”

. . . As Dr. Oluseyi discovered and NASA’s report confirmed, it was not Mr. Webb but a different State Department official who oversaw the purge and spoke disparagingly of gay Americans.

Indeed, Webb helped to slow down the firing of gay governmental employees:

Secretary of State Dean Acheson denounced the “filthy business” of smearing diplomats. And President Harry Truman, records show, advised Mr. Webb to slow-walk the Republican investigation, while complying with its legal dictates. Mr. Webb did not turn over personnel files to Senate investigators, according to the NASA report.

Webb also has anti-racist bona fides:

Mr. Webb, who died in 1992, cut a complicated figure. He worked with Presidents John F. Kennedy and Lyndon B. Johnson to integrate NASA, bringing in Black engineers and scientists. In 1964, after George Wallace, the white segregationist governor of Alabama, tried to block such recruitment, Mr. Webb threatened to pull top scientists and executives out of NASA’s Marshall Space Flight Center in Huntsville.

Finally, historians who work on gay history haven’t deemed Webb worthy of indictment:

Historians who specialize in this era in gay history said such expectations ignore the historical context. Mr. Webb did not lead efforts to oust gays; there was not yet a gay rights movement in 1949; and to apply the term homophobe is to use a word out of time and reflects nothing Mr. Webb is known to have written or said.

“The activists who say that James Webb should have stood up and spoken against the purges are anachronistic,” said Dr. Johnson, whose Twitter handle is @gayhistoryprof. “No one in government could stand up at that time and say ‘This is wrong.’ And that includes gay people.”

You’d think that would end the kvetching, right? WRONG!  People who argued that Webb was a homophobe didn’t change their tune in light of the multiple studies showing they were wrong. Instead, led by the notoriously woke physicist and activist Chanda Prescod-Weinstein, a professor at the University of New Hampshire and an activist who doesn’t miss a chance to parade her intersectional victim status (see below), they simply recalibrated their claims, saying that Webb should have stood up to the government. She and her colleagues had written several pieces objecting to the naming of the JWST on the grounds that Webb was a homophobe.

In a blog written with three fellow scientists, Chanda Prescod-Weinstein, a cosmologist at the University of New Hampshire with a low six-figure Twitter following, said that it was highly likely that Mr. Webb “knew exactly what was happening with security at his own agency during the height of the Cold War,” adding, “We are deeply concerned by the implication that managers are not responsible for homophobia.”

We’ve met Prescod-Weinstein on this site before—as author of a dreadful article on “white empiricism” that tried to conflate physics with social justice.

And she influenced others. Like all the critics of the JWST, Prescod-Weinstein didn’t do the research that NASA and Hakeem Oluseyi had done; they went after the man and his telescope based on rumors and distortions. Note below that Scientific American, now a woke, inflammatory rag of a magazine, participated in the tarring of Webb (see its two articles “The James Webb Space Telescope needs to be renamed“, of which Prescod-Weinstein was a coauthor, and “New revelations raise pressure on NASA to rename the James Webb Space Telescope“).

. . . . as the telescope neared completion, criticism flared. In 2015, Matthew Francis, a science journalist, wrote an article for Forbes titled “The Problem With Naming Observatories for Bigots.” He wrote that Mr. Webb led the anti-gay purge at the State Department and that he had testified of his contempt for gay people. He credited Dr. Prescod-Weinstein with tipping him off, and she in turn tweeted his article and attacked Mr. Webb as a “homophobe.”

Those claims rested on misidentification and that portion of Mr. Francis’ article has been deleted without notice to the reader. Mr. Francis declined an interview.

Oops!

In October, the Royal Astronomical Society in Britain waded in, declaring that Mr. Webb engaged in “entirely unacceptable” behavior. The society instructed that no astronomer who submits a paper to its journals should type the words “James Webb.” They must use the abbreviation JWST.

The American Astronomical Society demanded in April that NASA issue a formal and public report on its naming decision. And a trio of top scientific publications — Nature, New Scientist and Scientific American — published essays and editorials sharply critical of Mr. Webb with nary a dissenting word. Dr. Oluseyi said Scientific American rejected a letter from him pointing out flawed statements in its essays and rejected his proposal to write about his findings on Mr. Webb.

Scientific American’s editor, Laura Helmuth, declined an interview and wrote in an email that its coverage had been “timely, thorough and fair.”

petition demanding NASA rename its telescope has garnered more than 1,700 signatures, a majority from faculty and graduate students.

“This is about who we canonize and who are our real saints,” Dr. Prescod-Weinstein said in an interview. “We can’t just exonerate a dead white guy who was in the thick of a repressive government.”

There it is: a dead white guy, as if him being dead, white, and male count towards his perfidy. And even though he didn’t fire anybody, he was—as was every government employee in America—”in the thick of a repressive government.” This is what nasty wokesters say when they can’t pin malfeasance directly on someone. She also said this:

Dr. Prescod-Weinstein wrote that if Mr. Webb had been “a radical freedom fighter,” he would not have served in the Truman administration.

There were NO “radical freedom fighters during the Truman administration”!

Prescod- Weinstein’s rancor was exacerbated by Oluseyi’s report, which alluded to her, though not by name:

When Dr. Oluseyi wrote his essay on James Webb, he took to task journalists and an astrophysicist, whom he did not name, for not rigorously researching the accusations. He said that the scientist, who was cited by name in the Forbes article, had “propagated unsubstantiated false information.”

Dr. Prescod-Weinstein wrote on Twitter that she was this unnamed scientist in Dr. Oluseyi’s article and that he “is writing poorly researched articles that are basically hit pieces on me.”

“The leader of a professional society and a senior scientist,” she wrote, is “going out of his way to justify historic homophobia” and “attack a junior queer Black woman professor.”

Months, later, in August 2021, George Mason University recruited Dr. Oluseyi as a visiting professor, and Peter Plavchan, an astronomy professor, offered a tweet of welcome to the man he played a role in recruiting.

Dr. Prescod-Weinstein objected. In a stream of tweets, she said Dr. Oluseyi had championed “a homophobe.”

She wrote that Dr. Plavchan’s welcome was “a reminder that senior men in astronomy can treat junior women” poorly — using an expletive — “and be welcomed by colleagues with open arms.”

Notice the emphasis on her identity, and the victimhood she emphasizes by being attacked by a a “senior” man. When criticized for her inflammatory words, Prescod-Weinsten always brings up the fact that she’s black, gay, a woman, and, sometimes Jewish as well. More from the NYT:

Ms. Prescod-Weinstein, 40, was born in Los Angeles to a family of left-wing activists and is among a handful of Black women to work in theoretical cosmology. Charismatic and outspoken, she describes her writings on race and gender and science as inseparable.

“The civil rights versus gay people schtick is marginalizing and pathetic,” she said. “It’s straight people arguing about the straight canon. As a Black queer Jewish person, I’m not interested.”

Well, Dr. Weinstein, as a white, straight Jewish man (and an old one to boot), I do care: about the truth. Apparently you don’t, and your behavior reeks of self-aggrandizement and sheer nastiness.  Further Prescod-Weinstein also participated in the demonization of Oluseyi by spreading rumors—which again turned out to be false—that he was guilty of transgressions at his former university, Florida Tech.

The attacks against Dr. Oluseyi had shifted, as some accused him of personal misconduct.

Dr. Plavchan said that in July 2021, as word circulated in academia that Dr. Oluseyi might win an appointment at George Mason, he heard from a professor at a different university who claimed that Dr. Oluseyi had mishandled a federal grant and sexually harassed a woman.

Dr. Plavchan said that he reported these accusations to George Mason. Soon Florida Tech officials were combing through records and thousands of emails. They found nothing to substantiate these charges, according to Hamid K. Rassoul, a physics professor at Florida Tech and former dean who took part in the investigation. George Mason went ahead with its appointment in the fall of 2021.

Prescod-Weinstein, who must spend hours a day on Twitter, repeated these false rumors:

On Twitter, Dr. Prescod-Weinstein has pushed some of the same accusations, while not naming Dr. Oluseyi directly. “It continues to be the case that academic institutions play pass the harasser,” she wrote in a veiled reference to Dr. Oluseyi in August 2021. And this past November she questioned on Twitter why journalists have not asked why he left his last job.

Dr. Prescod-Weinstein did not reply to three emails asking for more information.

She’s clearly out to get Oluseyi, and since she didn’t get him for homophobia, she’s wants to get him for sexual harassment.

Another person who had no comment was the editor of Scientific American, whom we know well:

Scientific American’s editor, Laura Helmuth, declined an interview and wrote in an email that its coverage had been “timely, thorough and fair.”

Well, read this Sci Am op-ed, by Prescod-Weinstein and two colleagues, and see if it’s thorough and fair. A few quotes:

When he arrived at NASA in 1961, his leadership role meant he was in part responsible for implementing what was by then federal policy: the purging of LGBT individuals from the workforce. When he was at State, this policy was enforced by those who worked under him. As early as 1950, he was aware of this policy, which was a forerunner to the antigay witch hunt known today as the lavender scare. Historian David K. Johnson’s 2004 book on the subject, The Lavender Scare, discusses archival evidence indicating that Webb, along with others in State Department leadership, was involved in Senate discussions that ultimately kicked off a devastating series of federal policies.

. . . This struggle is not limited to science or to the past: Just a few months ago Representative Joaquin Castro of Texas introduced the LOVE Act of 2020, which “requires the State Department to set up an independent commission to review the cases of individuals who were fired since the 1950s as a result of their sexual orientation, receive testimony, and correct employment records.” Passage of the act would not only prompt an apology from Congress for its past complicity in the lavender scare but also provide protections for queer diplomats at home and abroad.

Yet we can honor the incredible heroes who worked tirelessly to liberate others. Before she became a conductor on the Underground Railroad, a disabled and enslaved Harriet Tubman almost certainly used the North Star, just as it is documented that others did, to navigate her way to freedom. Naming the next Hubble the Harriet Tubman Space Telescope (HTST) would ensure that her memory lives always in the heavens that gave her and so many others hope.

Shoot me now! At any rate, Oluseyi (and remember, he’s president of the National Society of Black Physicists) gets the last word:

Dr. Oluseyi is aware of the risk of damage to his reputation. For just a moment, he sounded plaintive.

“Look, I didn’t care about James Webb — he’s not my uncle,” Dr. Oluseyi said. “I had no motivation to exonerate. Once I found the truth, what was I supposed to do?”

The lesson is that being a black, gay, Jewish woman (or a woman editor of Scientific American) doesn’t give you special abilities to discern homophobia if there is no evidence, nor does it make you immune from criticism. If there’s any lesson Prescod-Weinstein should have learned as a member of the scientific community, it’s that the truth is independent of the personal characteristics of the person who finds it.

But then, in another post I wrote about Prescod-Weinstein, I analyzed her Slate piece called “Stop equating ‘science’ with truth.” To her, the truth is simply what is produced by those who have power, a distinctly postmodern position.

The final lesson is this: the woke never apologize (and they double down on their victims who do apologize), and they never admit they were wrong. Wouldn’t it be lovely if Helmuth and Prescod-Weinstein, along with the other critics of James Webb as a homophobe and Oluseyi as a sexual harasser, admitted they were wrong?

Don’t hold your breath.

Readers’ wildlife photos

September 8, 2022 • 8:00 am

We’re getting near the end of photos, and few are coming in. I’m afraid I’ll have to make this feature more sporadic. Today I’m combining photos from three contributors; all their notes and IDs are indented, and you can enlarge the photos by clicking on them.

The first is Rachel Sperling.

I’m attaching a few photographs I snapped the other week of a female Ruby-throated hummingbird (Archilochus colubris) and a male Downy woodpecker ( Dryobates pubescens). These were shot in the southern Adirondack Mountains of New York.I’m only a casual birder, but I’ve observed hummingbirds to be very territorial; they’ll expend energy chasing one another away from feeders when there’s plenty of nectar to go around. But this hummingbird didn’t seem at all bothered by the presence of the downy woodpecker. For all I know, that’s common, but I’d never seen it before. I wasn’t able to get a photo of the woodpecker drinking the nectar, but he did appear to be drinking it.

Arthropods from Christopher Moss:

I always called these things tent caterpillars, but now I learn their web tents are seen only in the spring, and in the nodes of large branches and trunks. However, the Fall Webworm (Hyphantria cunea) makes its tents at the end of branches and appears at this time of year. This one caught my eye as it was so big—about four feet long. It’s a good thing for them that my mother, a horticulturalist, is no longer with us. She used to smash the webs up and grind the caterpillars with her bare hands, which made me rather squeamish!

And having these around can hurt your horses.

A black and yellow garden spider (Argiope aurantia), that has made its home on my basil. Apparently venomous and willing to bite if disturbed, with an effect like that of a bumblebee sting on the recipient. I’ll have to leave that pot of basil till last and manage with the others in the meantime!

 

. . . and astronomy photos by Terry Platt.

Here’s a few more images of hydrogen in the Cygnus – Cepheus region of the Milky Way. I hope that they are useful.

Simeis 57 – the ‘Propeller’ nebula is a small component of a much larger area of hydrogen found in North West Cygnus. It is probably about 5,500 light years away.

IC1340 is a very different kind of nebula, in that it is part of a huge expanding cloud of debris from a giant star that became a supernova about 15,000 years ago. Such explosions are the source of the heavy elements that make up most the Earth and the life upon it, so our bodies are composed largely of the debris from similar explosions that occurred billions of years ago.  This nebula is in Eastern Cygnus and is often called the ‘Cirrus’ or ‘Veil’ for obvious reasons. The distance is 2,400 light years.

NGC 7380  – the ‘Wizard’ is one of the few nebulae that seem to fit quite well with an anthropomorphic name. The wizard’s pointy hat is clearly seen near the top, as a dark cone of dust, and his outstretched hands are seen near the centre, full of glow from the magical spell that he is casting. In reality, this is a region of hot hydrogen, which is expanding to the left and sculpting the cooler dust cloud. The Wizard is in Cepheus, a little North of Cygnus, and is about 8,500 light years away.

Readers’ wildlife photos

August 27, 2022 • 8:00 am

Today we have a mixture of animals and astronomy. The readers’ captions and IDs are indented, and you can enlarge the photos by clicking on them.

The first three photos are from reader Terry Platt.

The weather hasn’t been helpful recently, but here are some H-alpha images of other objects in the Cygnus region. The NGC7000 image shows an impressive ‘wall’ of hot hydrogen with dark dust clouds. This region is part of the ‘North America’ nebula, which is a very large area of hydrogen emission to the northeast of the bright star Deneb. The nebula overall is vaguely similar to the shape of the USA and this part is ‘California and New Mexico’. It is about 2590 light years from Earth.

The other two images are of the planetary nebula M27. One is processed to show a ‘visual’ appearance, as the eye might see, while the other is very strongly contrast boosted to show the extensive, but faint, outer extensions. Planetary nebulae are the remnants of Sun-like stars, which have exhausted their hydrogen and blown most of their outer layers into the surrounding space. This process begins with ‘helium flashes’ where the helium rich star detonates helium burning for short periods and blows away its outer layers – this is the source of the faint extensions. As the star ages further, the process becomes more continuous and the core of the star is finally exposed as a very hot, but tiny, ‘white dwarf’ . M27 is at this stage and the white dwarf core can be faintly seen at its centre – the Sun may look something like this in about 10 billion years from now. M27 is about 1350 light years away in the constellation of Vulpecula.

Visual image:

Contrast boosted:

And two arthropods by Tony Eales:

More proof, if needed, that jumping spiders are the cats of the arachnid order. A study was published showing sleeping jumping spiders twitch in their sleep and even show what looks like REM periods associated with these twitches. Spider dreams? [JAC: Photos are Tony’s]

And then only a week later I see a story on consciousness in bees.  Here are some small stingless bees looking at me and presumably wondering if I am sentient:

Hubble Photo of the week

July 18, 2022 • 8:30 am

Let’s not forget the Hubble Space Telescope, now overshadowed by the Webb. Yet the Hubble site, run by NASA and the ESA (European Space Agency) still issues a weekly photo. Here’s this week’s, called “Lens Flair“.  Look at that mirror image galaxy!

Part of the description:

This intriguing observation from the NASA/ESA Hubble Space Telescope shows a gravitationally lensed galaxy with the long-winded identification SGAS J143845+145407. Gravitational lensing has resulted in a mirror image of the galaxy at the centre of this image, creating a captivating centrepiece.

Gravitational lensing occurs when a massive celestial body — such as a galaxy cluster — causes a sufficient curvature of spacetime for the path of light around it to be visibly bent, as if by a lens. Appropriately, the body causing the light to curve is called a gravitational lens, and the distorted background object is referred to as being “lensed”. Gravitational lensing can result in multiple images of the original galaxy, as seen in this image, or in the background object appearing as a distorted arc or even a ring. Another important consequence of this lensing distortion is magnification, allowing astronomers to observe objects that would otherwise be too far away or too faint to be seen. . .

. . . This particular lensed galaxy is from a set of Hubble observations that take advantage of gravitational lensing to peer inside galaxies in the early Universe. The lensing reveals details of distant galaxies that would otherwise be unobtainable, and this allows astronomers to determine star formation in early galaxies. This in turn gives scientists a better insight into how the overall evolution of galaxies has unfolded.

Gravitational lensing, caused by the curvature of spacetime by gravity, causes light to bend. This was predicted by Einstein’s theory of relativity, and that theory is visually confirmed by images like this. (It also constituted the first test of general relativity by Eddington and his collaborators in 1919.

Credit: ESA/Hubble & NASA, J. Rigby

 

Webb Space Telescope reveals first image, more to come this morning at 10:30 a.m. EST

July 12, 2022 • 8:00 am

You all know that yesterday and today began the public roll-out of photos from the Webb Space Telescope. And the first one, released yesterday and shown below, is a doozy.  Farther down I’ll tell you how to watch when today’s allotment is reveal. First, the photo and what NASA had to say about it (my emphasis). Remember, though, that the photos will be revealed 1½ hours after this post goes up.

NASA’s James Webb Space Telescope has produced the deepest and sharpest infrared image of the distant universe to date. Known as Webb’s First Deep Field, this image of galaxy cluster SMACS 0723 is overflowing with detail.

Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

This deep field, taken by Webb’s Near-Infrared Camera (NIRCam), is a composite made from images at different wavelengths, totaling 12.5 hours – achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks.

The image shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying much more distant galaxies behind it. Webb’s NIRCam has brought those distant galaxies into sharp focus – they have tiny, faint structures that have never been seen before, including star clusters and diffuse features. Researchers will soon begin to learn more about the galaxies’ masses, ages, histories, and compositions, as Webb seeks the earliest galaxies in the universe.

This image is among the telescope’s first-full color images. The full suite will be released Tuesday, July 12, beginning at 10:30 a.m. EDT, during a live NASA TV broadcast.

Here’s that stunning photo. Be sure to go to the NASA YouTube site below at 10:30 this morning:

Matthew sent two tweets showing the vastly improved vision of the sky that Webb’s afforded us. Be sure to click on the arrows to see the two two-photo gifs:

A one-minute video showing the improvement compared to previous optical instruments.

Doesn’t that make you feel small? The “pale blue dot” pales before such an image. But we should also be very proud of our species for creating an instrument that can show us the Universe and our place in it.

When and where to watch:

The Verge gives us the schedule for releasing the photos this morning:

Tuesday, July 12 (Image Release Day)

9:45 a.m. – Live, opening remarks by agency and Webb leadership will air on NASA TV, the NASA app, and the agency’s website ahead of the first images release.

10:30 a.m. – Live coverage of the image release broadcast will air on NASA TV, the NASA app, and the agency’s website. The public also can watch live on FacebookTwitterYouTubeTwitch, and Daily Motion.

. . .NASA has planned a series of briefings on July 12th to roll out the rest of the images. First, at 9:45AM ET, there will be opening remarks by leadership at NASA and the JWST team. Then, at 10:30AM ET, NASA should reveal the remaining images during a live broadcast, which will be followed by a media press conference at NASA’s Goddard Space Flight Center at 12:30PM ET. It’s going to be a jam-packed day of content, but if you’re looking to just see the remaining images, 10:30AM ET is the time to tune in.

Scheduled time: New York: 10:30AM / San Francisco: 7:30AM / London: 3:30PM / Berlin: 4:30PM / Moscow: 5:30PM / New Delhi: 8:00PM / Beijing: 10:30PM / Tokyo: 11:30PM / Melbourne: 12:30AM

And you can conveniently watch the release at NASA’s YouTube site below. The site will host festivities after the photo release and there will be more stuff on Wednesday, though no new photos. Consult the NASA site for details.

The Royal Observatory’s Astronomy Photographer of the Year Contest

July 6, 2022 • 8:00 am

Instead of readers’ wildlife today (I’m saving up), let’s see some entries from the Royal Observatory at Greenwich’s Astronomy Photographer of the Year Contest. The shortlisted entires have been reproduced in several places. The ones below are below from the Times, but Forbes also has an array, with this note:

The world’s most prestigious competition for cosmic images has revealed its shortlist—and it’s packed with wonder.

From the Moon and eclipses to comets and the northern lights, the shortlisted images for this year’s Astronomy Photographer of the Year have been plucked from over 3,000 entries from amateur and professional photographers in 67 countries.

Organized by London’s Royal Observatory Greenwich and sponsored by Liberty Specialty Markets and in association with BBC Sky at Night Magazine, this 14th annual competition will announce its winners on September 15, 2022.

The Times reports that the photos are on exhibit at Britain’s National Maritime Museum, which also happens to be in Greenwich.

Click on the screenshot to see them all (beware as the Times of London, where this was published, often uses a paywall); I’ll show my favorite six (with credits, of course), but there are 15, all gems. The paper’s captions are indented; click on the photos to enlarge them.

A partial eclipse of the Sun shot from Romano d’Ezzelino in the Veneto region of Italy on June 10 last year. It was a day of low solar activity, enabling the photographer to capture this unusually crisp image of the Moon’s silhouette. ALESSANDRO RAVAGNIN

The Northern Lights are reflected in the still waters of a lake in Alberta, Canada. SHANE TURGEON

There are lots of pictures of the Sun.

Clouds of hydrogen gas give way as the magnetic field lines of the Sun snap and clash together. This display of nature, taken from Los Angeles, creates astonishing features, known as prominences. SIMON TANG

Chidiya Tapu, in India, is rich in flora and fauna. Far from city lights, the nature reserve in the Andaman Islands archipelago is ideal base for wide-field astrophotography. Here, the Milky Way seems to mirror the water on its course. VIKAS CHANDER

The Soul nebula and its core, as seen from China. To its east is a complex of nebulae and star clusters known as the Heart nebula. Together they are often referred to as Heart and Soul. NAN WANG, BINYU WANG

This must have been taken near Death Valley (or the Panamint Valley), places where I’ve spent months collecting flies.  So I suppose this is my favorite.

Viewed from California under a quadruple arch, the stars circle around Polaris, in this stack of 33 four-minute exposures. The Sierra Nevada mountain range fills the horizon and Mount Whitney, the tallest peak in the continental United States, is on the far left. SEAN GOEBEL

h/t: Malcolm, Ginger K.

Deployment of Webb Space Telescope’s mirror’s successful, but we’re not there yet

January 20, 2022 • 11:00 am

The toughest bit, though seems past: successfully unfolding the entire mirror of the Webb Space Telescope was the most delicate of all its operations, since nothing could fail without endangering the scope’s usefulness. And nothing did! NASA has reported, along with many other sites, that the main mirror deployment is, as they say, “nominal.”  From Space.com:

JWST’s golden primary mirror includes 18 individual hexagonal segments, each controlled by seven actuators that allow precise movements. All 18 segments are now in their deployed positions several days sooner than scheduled.

Work began on the mirror segments on Jan. 12 and was expected to take about 10 days. But despite today’s announcement, those mirror segments aren’t quite ready to observe yet. First, NASA must conduct the painstaking process of fine-tuning every mirror’s position to turn 18 individual views of the universe into one large ultra-powerful mirror.

The team behind Webb expects that the entire mirror process will take about three months, all told.

Here’s a NASA video of the immensely complicated process of aligning all the mirrors once they’ve unfolded. I have faith in the Telescope Humans that all will be well.

More:

If this works okay, and nothing else goes wrong, in a few months the scope will be in position and ready to send data. There is one more important maneuver:

Webb has one more key deployment milestone to complete, a trajectory burn that will insert the observatory into orbit around a spot in space dubbed the Earth-sun Lagrange point 2, or L2. L2 is located nearly 1 million miles (1.5 million kilometers) away from Earth, on the side of the planet opposite the sun.

According to a NASA timeline, JWST is expected to complete this final arrival maneuver on Sunday (Jan. 23).

A good site to follow is “Where is Webb?” NASA’s real-time timeline of the mission showing the location of the scope and what it’s doing. Below is a screenshot that you can click on to see where Webb is now. It’s approaching “L2 insertion” on the right! Click on the photo to enlarge it.

 

Readers’ wildlife photos and videos

November 24, 2020 • 8:00 am

We have two contributors today. First, reader “sherfolder” sent us some photos and videos of penguins, and I can’t resist posting penguins. Sherfolder’s captions are indented:

I send you some pictures I took in March of African Penguins at Seaforth Beach, near Simons Town on the Cape Peninsula.

African penguins, also known as the Cape penguin or South African penguin, live on the west coast of Africa, on the islands of Angola and Namibia to the South African east coast. They are pursuit divers and forage in the open sea, where they pursue fish such as sardines and anchovies.

In 1910, the population of African penguins was estimated at 1.5 million. In 2010, the total African penguin population was at 55, 000. At this rate of decline, the African penguin is expected to be extinct in the wild by 2026. The total breeding population across both South Africa and Namibia fell to a historic low of about 20.850 pairs in 2019.

By the way, the German name for that species (Spheniscus demersus) is “Brillen-Pinguine” (that would mean in English: “Eyeglass penguins”), which is probably due to their facial drawings, although I don’t think that those markings actually resemble glasses.

The first video shows three penguins that have just landed on the beach from the sea and are now setting out to climb a rock, you could have touched them, they came so close.

The second video shows a group of four penguins diving and swimming almost in formation gracefully and swiftly in the sea.

Our second contributor is Tim Anderson from Australia, with one of his lovely astronomy photos:

This is the Tarantula Nebula (NGC2070), an enormous star-forming region inside the Large Magellanic Cloud, the nearest galaxy to the Milky Way. It contains some of the largest stars ever measured from Earth.