Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also ...

"All the odd shapes and swirling gas observed in the Perseus cluster now make sense within the context of a major merger." ...

Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

O ur neighboring Andromeda Galaxy (Messier 31, or M31) appears to sport a lopsided arrangement of satellite galaxies that ...

Apr. 16, 2025 — Astronomers have found a planet that orbits at an angle of 90 degrees around a rare pair of peculiar stars. This is the first time we have strong evidence for one of these 'polar ...

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 ...

Graduate students from the Graduate University for Advanced Studies (SOKENDAI) participated in an observational training ...

If their existence is confirmed it ... 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 ...

"A supercomputer simulation shows many galaxies merging over time. The parts of galaxies we can see are glowing stars forming ...

An entire asteroid doesn't just materialize out of nothing, though, and now astronomers have determined what 2024 YR4 is made of, what it looks like, and the unexpected place in the Solar System that ...

Over 30 galaxies are packed into a region comparable in size to the Andromeda galaxy, one of our nearest neighbors. "However, this system is forming stars at a rate 10,000 times higher than ...

With this research, according to William Balmer, an astronomer at Johns Hopkins University and leader of the research, "we want to understand our solar system by seeing how it is similar to or ...