This Distant Galaxy Cluster is Totally Relaxed, Unharassed for a Billion Years
In the span of a human lifetime, much of the Universe seems unchanging. But that's an illusion; things are always…
A New Simulation Reveals One Entire Stage of a Star's Life
Stars begin as giant clouds of gas and dust that pull together through mutual gravity into a dense protostar. At…
Comet P1 Nishimura Could Be Bright Over the Next Few Weeks
New Comet P1 Nishimura graces the August dawn sky...but how bright will it get?
The Largest Impact Crater on Earth, 520 km Across, Might Be Hiding Under Australia
Asteroid impacts have arguably killed off more species than almost any other type of disaster since life began on Earth.…
No Surprise, July 2023 Was the Hottest Month on Record Since 1880
In case you missed it, the weather's been hot. From warmer-than-usual temperatures in northern climes to melting ice sheets in…
This Sure Looks Like the Movements of a Glacier Across Ancient Mars
An image taken by the HiRISE camera aboard NASA's MRO shows evidence of past glaciers away from Mars' polar regions.
We Might Be Able to Measure Dark Energy Through the Milky Way's Collision With Andromeda
The Milky Way and Andromeda are set to collide in a few billion years but are still over two million…
This Brown Dwarf is 2,000 Degrees Hotter Than the Sun
Astronomers have discovered an intense binary star system located about 1,400 light years away. It contains a brown dwarf with…
The Sun Gets Meteor Showers Too, But They’re Very Different
The Sun dominates the Solar System in almost every way imaginable, yet much of its inner workings have been hidden…
New Horizons is So Far Away, it Can Measure the True Darkness of the Universe
NASA's New Horizons Spacecraft has completed its flybys of Pluto and Arrakoth and is now about 8 billion kilometers from…