This unusual system 'shouldn't exist,' says one astronomer, who notes the orbit is as long as his daily commute. By Briley Lewis Published Aug 8, 2023 6:00 AM EDT Get the Popular Science daily ...

The first look at the Dinkinesh asteroid revealed a surprise: The small space rock had its own moon. Now as the Lucy spacecraft downlinked more images of its first target, it showed not one but two ...

While our Sun prefers to go solo, many other stars are parts of binary systems, with a pair of stars gravitationally bound to each other. In some cases, the stars are far enough apart that planets can ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Stars are the fundamental building blocks of our ...

Over the past six decades, scientists have discovered two dozen stellar-mass black holes using X-ray methods. The mass distribution of these black holes, mainly between five to 25 solar masses, shows ...

In a recent study accepted to Astronomy & Astrophysics, a team of researchers use a combination of space- and ground-based telescopes to examine a binary star system (two stars orbiting each other) in ...