The largest sunspot region of early 2025!
Astronomy
In Our Skies, May and June 2025
Astronomy highlights for May and June 2025
Mailbox, May 2025
Moon rays… Venus phases… night-flying bees… Read the May letters to the editor.
Eastern Hydra and Corvus
The eastern part of Hydra doesn’t hold quite as many outstanding deep-sky targets as the western half of the constellation, but there are several objects here that are worth taking the time to find…
Lunar Rays Raise Questions
At first glance, the Moon looks like a dull gray world, but the closer you look and the longer you observe, the more you’ll notice interesting features…
Western Hydra
Hydra holds a diverse array of telescopic targets. The constellation contains several beautiful double stars, as well as a fairly bright planetary nebula, a globular star cluster, a bright open star cluster, and a fine barred spiral galaxy…
Mailbox, April 2025
110 Things to See With a Telescope. Thundersnows. Read the April letters to the editor.
Lets Take a Hike, March 2025: Comet
View the full issue in the Magazine Archive Comet C/2024 G3 (ATLAS). Photo © Yuri Beletsky Comet C/2024 G3 (ATLAS) sets beside the dome of the 6.5-m Magellan Telescope at Carnegie’s Las Campanas...
In Our Skies, March & April 2025
View the full issue in the Magazine Archive March 7 Mars will be <2° S of the Moon. March 8 Mercury will be at its greatest eastern elongation, meaning you can see it just after sunset. March 14...
Atmospheric Optics
View the full issue in the Magazine Archive www.atoptics.co.uk Not everything that looks like a rainbow is called a rainbow. Colorful arcs close to the Sun are in the not-a-rainbow category. You can...
Puppis
View the full issue in the Magazine Archive By the time March comes around in the Northern Hemisphere, Leo is high in the east and Arcturus is rising around dark—both sure signs that spring is...
From the Editor’s Quill, March 2025
View the full issue in the Magazine Archive
End of the Trail, March 2025: Comet
View the full issue in the Magazine Archive Comet C/2024 G3 ATLAS. Photo © Kevin Shank. Comet C/2024 G3 ATLAS photographed in Rockingham County, Virginia, January 15, 2025,in full daylight four...
A Close Look at a Comet’s Nucleus
View the full issue in the Magazine Archive The size of this comet is approximately 2.7 x 2.5 miles (4.3 km x 4.1 km). Photo © CC BY-SA 4.0 The photo above is is a true-color photograph of the...
End of the Trail, February 2025: Comet
View the full issue in the Magazine Archive Comet 67P/Churyumov-Gerasimenko. This cliff is one kilometer high. Photo © ESA, Rosetta, NAVCAMProcessing: Stuart Arkinson