Category Archives: astronomy

Readers’ wildlife photos

Don’t forget to send in your good wildlife photos; there’s always a need for more! Reader Don McCrady sent a terrific series of eagle-in-action pictures, and topped it off with a star photo. His notes are indented: I purchased a new Canon 6D camera a little while ago so I stuck my 400mm lens on […]

Readers’ wildlife photos

We have birds and stars today (don’t forget to send your pictures in!). The first batch comes from reader Darrell Ernst of Vero Beach, Florida. As always, photographers’ notes are indented: Thought I’d send you some pictures for your consideration for the Reader’s Wildlife Pics. They are a mix of bird images all taken within […]

Readers’ wildlife photos

Today we have a potpourri of photos; the first comes from reader Tim Anderson in Australia, who does astronomical photos: This is a picture of the Jewel Box (NGC 4755), a “small” open star cluster located very close to the Southern Cross. It contains about one hundred stars. The Jewel Box was first described by […]

Readers’ wildlife photos

Reader Tim Anderson from Oz sends astronomy, landscape and animal photos; his captions are indented. Here a two astronomical images I have made recently. First is a globular cluster, Omega Centauri (NGC 5139). This is easily visible to the naked eye, as it is the brightest such object in the sky and contains about five […]

Pan: a small “ravioli moon” of Saturn

On September 15, the Cassini spacecraft, 13 years after launch and after helping scientists acquire tons of knowledge, will cease its orbiting of Saturn and plunge into the planet’s atmosphere, disintegrating in the process. This suicidal move was deliberate, as scientists didn’t want to contaminate any of Saturn’s moons in case they prove habitable.  Just four […]

Readers’ wildlife photos

This is the 16,000th post I’ve put up since this website started in 2009. Next landmark: getting 50,000 subscribers! I am posting part 2 of reader Loren Russell’s photos of insects he found on the snow in a hike in Oregon. Part 1 was posted yesterday with this introduction: A new camera and an email from […]

Google Doodle celebrates discovery of exoplanets

An “exoplanet” is a planet outside the solar system, and today’s Google Doodle, remarkably timely (and cute), celebrates yesterday’s announcement (published in Nature; I haven’t yet read the paper) of seven exoplanets found orbiting around a single star called “Trappist-1”, forty light years away:   As NASA reports, there are seven planets, all roughly the size of […]

Readers’ wildlife photos

We have a diversity of photos today, but remember to send your good ones in, as the tank is continually draining. The first one comes from Garry VanGelderen, who lives in Ontario (all readers’ notes indented): Male pileated woodpecker (Dryocopus pileatus) on my suet feeder, in my backyard in the last few days [sent on Jan. […]

Readers’ wildlife photos

Reader Rodger Atkin sent a lovely dragonfly photo from Thailand, which may be a mimic. Though I know of no mimetic dragonflies, I don’t know much about Odonata, and Rodger  asks readers if they know anything about this one. His notes: This was taken in my yard in Thailand. I have never seen markings like those […]

Readers’ wildlife photos

Remember to send in your good wildlife photos; the tank is getting a bit low. Reader Mark Sturtevant sent a batch of insect photos, which I’ve divided into two parts. Here are the first five with his notes (indented): The first picture is of a Pale Green Assassin Bug (Zelus luridus), which is feeding on an unidentifiable […]