The Andromeda Galaxy's family of dwarfs are an enigma. First it was the unusual flat plane around which more than half of them orbit, and now this lopsidedness. It just goes to show that sometimes it ...

An astonishing discovery from the James Webb Space Telescope may rewrite our understanding of the Universe’s early years. A ...

Sky This Week is brought to you in part by Celestron. Friday, April 18Jupiter still rules the early-evening skies, standing ...

Looking for a really big story, I naturally headed for "Galaxies in Collision." Bradley Whitmore of the Space Telescope Science Institute in Baltimore brought us up to speed. We've known for a ...

Apr. 9, 2025 — The NASA/ESA Solar Orbiter recently recorded the highest-ever concentration of a rare helium isotope (3He) emitted from the Sun. A Southwest Research Institute-led team of ...

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations published in Nature Astronomy reveal that ...

Long thought to be a single galaxy outside of our own, the Small Magellanic Cloud may in fact be two galaxies, with one ...

2025 — A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

In a study published in The Astrophysics Journal, a Michigan State University researcher used the NASA Chandra X-Ray ...

If it exploded today, this future supernova might be close enough to us to pose a threat, but the Sun will have burned out ...