The Milky Way is about 100,000 light-years across, 1,000 light-years thick, and populated by 100 billion stars. That sounds close to infinite—until, that is, you realize that it is just a fragment of ...

Even with eclipsing binaries, measuring the properties of stars is no easy task. Stars are deformed as they rotate and pull on each other in a binary system. They interact, they irradiate one another, ...

Astronomers have used the NASA and U.S. National Science Foundation-funded “Alopeke instrument on Gemini North,” one half of the International Gemini Observatory, which is partially funded by the NSF ...