2MASS J17554042 6551277
2MASS J17554042+6551277 doesn’t exactly roll off the tongue but that’s the name, a coordinate-based catalog designation, of the […]
NASA
A Filament in Monoceros
Bluish reflection nebulae seem to fill this dusty expanse. The sharp telescopic frame spans over 1 degree on […]
Centaurus A
A mere 11 million light-years away, Centaurus A is the closest active galaxy to planet Earth. Spanning over […]
The Observable Universe
How far can you see? Everything you can see, and everything you could possibly see, right now, assuming […]
A Road to the Stars
Pictured — a very scenic road to the stars. The road approaches La Silla Observatory in Chile, with […]
Star Formation in the Eagle Nebula
Where do stars form? One place, star forming regions known as “EGGs”, are being uncovered at the end […]
Colorful Airglow Bands Surround Milky Way
Why would the sky glow like a giant repeating rainbow? Airglow. Now air glows all of the time, […]
Point Reyes Milky Way
Northern winter constellations and a long arc of the Milky Way are setting in this night skyscape looking […]
When Rainbows Smile
Want to see a rainbow smile? Look near the zenith (straight up) when the sun is low in […]
Globular Star Cluster 47 Tuc
Globular star cluster 47 Tucanae is a jewel of the southern sky. Also known as NGC 104, it […]