Astronomers may have uncovered new details about one of the Milky Way's most important ancient collisions. Using data from ...

Sulfur is one of the most abundant elements in the universe. If you peer into a diffuse interstellar cloud, you find loads of it—about the amount expected based on fusion patterns in the stars it was ...

Theories about how ice crystals grow in cooling liquids are wildly inaccurate when compared with experimental data, but ...