James Webb spotted a young galaxy blasting away its star-forming gas, revealing how massive galaxies may die early.

A recent discovery of a mysterious gas in deep space has left astronomers in a state of shock. This revelation is the latest in a series of surprising cosmic phenomena observed throughout 2025, ...

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but they came close enough to leave a permanent mark on the thin mist of gas that ...

These stars can make new elements, undergo pulsations on the timescale of days to years, and lose a lot of their mass—throwing off an Earth-mass equivalent of material over a four-year period—before ...