Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

Data from the James Webb Space Telescope has identified the universe’s most ancient supernova to date. This milestone not only redefines astronomical records but clarifies how the universe’s first ...

For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...

I/ATLAS, comets, asteroids, quasi-moon and more. In 2025, scientists spotted several strange events and objects in the ...