In the heart of astrophysics, a new contender for the strangest object in space has emerged: exotic stars that imitate black holes. These star-like bodies could be made of dark energy or vacuum - and ...

What if everything we know—the stars, the galaxies, the expanding fabric of space-time—isn’t floating in a limitless void, but instead exists inside a black hole? It may sound like a work of ...

A mysterious class of small, red objects in the early universe might be explained by black holes inside dense cocoons of gas, like a star. Since launching in 2021, the James Webb Space Telescope ...