Why do galaxies shrink?
An astronomer studying the 3 main processes that cause galaxies to lose mass found that the dominant process depends on the size and age of…
Tag: stars
Why the Milky Way is shaped like a spiral
A team of astronomers reconstructed a 3-part history of the Milky Way Galaxy by comparing the physics and chemistry of 10 million red giant…
Machine learning has its limits when studying hard-to-see galaxies
Scientists in South America and Italy found that a machine-learning algorithm astronomers commonly use to analyze large datasets classified…
Scientists found neutron stars merge to make heavy elements
A team of astrophysicists in China simulated collisions between the remains of former stars and showed the resulting explosions could…
The universe’s dust is on the decline
Astronomers found the density of dust in the universe has been steadily decreasing for the last 10 billion years, as it coalesced to form…
Creating a cosmic family tree
Astronomers traced the genealogy of a kilonova explosion by using models to find its most likely parent stars.
A different kind of child star
Maybe you didn't have a stellar childhood, but stars definitely did. (Get it?) Learn about a major research project that investigated one…
How stars can limit life in the universe
For the past few decades, scientists have been looking at planets outside of our solar system to see if they could host life. Now,…