Uranium crystals that settle in the cores of white dwarfs could trigger nuclear chain reactions that blow the dead stars apart, a new study suggests.
Distances between stars, their brightnesses and patterns of human eye movement explain why particular sets of stars tend to be grouped together.
The unusual pattern of radio waves dubbed the USS Jellyfish tells a story of intergalactic gas meeting black hole by-products.
In 1971, lab experiments suggested organic molecules could be made on Mars. Fifty years later, robots are searching for such signs of life on the planet itself.
A new analysis of Event Horizon Telescope data from 2017 brings to light the magnetic fields twisted around the black hole at the core of galaxy M87.
Early results from an experiment designed to replicate one that hinted that dark matter is made up of WIMPs came up empty-handed.
Two types of polycyclic aromatic hydrocarbons in the Taurus Molecular Cloud are far more abundant than predicted.
If the first interstellar visitor were a shard of nitrogen ice, it would explain some of its unusual behavior when it passed through our solar system.
New observations confirm that a cloud in the constellation Antlia really is a supernova remnant and the largest ever seen from Earth.