The Milky Way’s Most Recent Meal was a Galaxy it Gobbled up 8-10 Billion Years ago
The Milky Way had a sausage galaxy breakfast about 8 billion years ago
The Milky Way had a sausage galaxy breakfast about 8 billion years ago
Comets with a green glow don’t have green tails, and a new set of lab experiments tells us why.
The James Webb telescope might discover primordial black holes in the near future.
Astronomers have found a small, hot planet that might be almost solid iron.
Hypervelocity stars may allow us to map dark matter as they leave the Milky Way.
To terraform Mars, we will need to give it a protective magnetic field. Here’s how we might do it.
A study of how neutrons decay could give us a better understanding of the big bang.
A search for sterile neutrinos finds they are not the solution to dark matter.
If we define planets as worlds that are geologically complex, then some moons are planets too.
New observations put further constraints on primordial gravitational waves, but still haven’t found them yet.