Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

V1674 Herculis was a record-breaker. It erupted in the constellation Hercules on June 12, 2021, and skyrocketed to peak ...

Known as dinosaur stars for both their primeval nature and their immense size, Population III stars existed only when the ...

While this eerie NASA Hubble Space Telescope image may look ghostly, it's actually full of new life. Lupus 3 is a ...

One of the most stubborn issues in cosmology today concerns the universe's rate of expansion. Scientists know it's expanding, ...

"It's like watching a cosmic volcano erupt again after ages of calm — except this one is big enough to carve out structures ...