Supermassive black holes rarely travel alone. Most large galaxies hide one at the center, and when galaxies collide, the two ...
A bright star in the Andromeda galaxy appears to have simply vanished. After a dramatic mid-infrared flare in 2014, the ...
Scientists believe that when galaxies collide and merge, the supermassive black holes at their centers should eventually pair ...
A massive star 2.5 million light-years away simply vanished — and astronomers now know why. Instead of exploding in a supernova, it quietly collapsed into a black hole, shedding its outer layers in a ...
Hypothetical dark matter stars known as "boson stars" could leave telltale ripples across the cosmos, offering researchers a new way to probe the invisible forces shaping the universe. In 2019, a ...
A mysterious object has caused a long-lasting and extreme dimming of a distant star, but is this object a 'failed star' brown dwarf, or an exceptionally massive super-Jupiter exoplanet?