Category Archives: astronomy and cosmology

A three-dimensional map of the Universe

Well, I can’t say I fully understand what’s being shown here, except that it depicts the detectable galaxies in the Universe (some not seen because the Milky Way hides them).  Cosmos has an explanation that I put below the video. If you’re an astronomy buff, you’ll probably understand this, and I’m hoping the cosmology mavens […]

Readers’ wildlife photos

On this site, astronomy counts as “wildlife”, and readers Leo Glenn and Mark Jones sent some lovely pictures of Comet Neowise, which I haven’t been able to see. Leo and Mark’s words are indented; click photos to enlarge them. First, photos from Leo: While these technically aren’t wildlife photos (well, one might qualify), I thought […]

Readers’ wildlife photos

Today we have a story by reader Kurt Helf about which he called “Honeybee rescue in the time of Covid-19”,  and also a lovely astronomical photograph by Tim Anderson. First, Kurt’s story; his words are indented: To break up the teleworking workday I take regular midday walks around the neighborhood.  Two weeks ago I noticed […]

New telescope visualizes roiling cells of plasma at the Sun’s surface

Reader Mark called my attention to these new videos from the Daniel K. Inouye solar telescope, a four-meter scope near the summit of Haleakala, Maui, in Hawai‘i (you can read about it at the National Science Foundation’s site here). It’s taken some stunning pictures of the Sun’s surface, including giant roiling cells of plasma shown […]

History’s most amazing photo?

I almost never visit the My Modern Met site, but it must be good, as I often get suggestions from readers about articles there. I think I found this one on my own, but probably through Facebook. It’s the story of how an enterprising young photographer, Jon Carmichael, took a spectacular photo of a solar […]

Readers’ wildlife photos

We have contributions from two readers today. First, Tim Anderson of Oz sent some nice astronomy photos; his notes are indented: This is an image of the Helix Planetary Nebula taken on 5 September. Planetary nebulae have nothing to do with planets, early European astronomers thought they looked like planets and the name stuck, Rather, […]

Reader’s wildlife photo

Remember that on this website, astronomy and nature photos count as “wildlife”. This is a photo from reader Tim Anderson in Australia, whose words are indented: This is a picture of the Trifid Nebula or NGC6514. Its name has nothing to do with the John Wyndham novel “Day of the Triffids”, but instead derives from […]

Livestream of black-hole announcement at 9 a.m. EDT (1300 GMT)

As I mentioned yesterday, today is the day that the Event Horizon Telescope team will announce “a major discovery”, which will almost certainly include the first photographic image of a black hole. The announcement will be livestreamed at 9 a.m. Eastern Time in the US or 1300 GMT. Sadly, I’ll be on my way to […]

First black hole photo should be released tomorrow; explanatory video below

Reader Bryan called my attention to the fact that in exactly 24 hours, a photo of a black hole (if there is indeed such a photo), will be released for the first time. The project is described in this New York Times article, which gives this context: At 9 a.m. Eastern Time on Wednesday April […]

Readers’ wildlife photos

Remember to send in your good wildlife photos. The tank doesn’t fill itself! We have two contributors today, the first being Tim Anderson from Oz, who sent us both an astronomy photo and an animal photo. First the critters, one of the rare moth species that migrate. A pair of migrating bogong moths (Agrotis infusa) […]