They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

Odd bursts, shifting expansion rates, and oversized early galaxies are pushing astronomers to refine physics, not rewrite it, ...

Space is full of surprises, and in 2025, astronomers witnessed one of the most extraordinary events ever registered: a gamma-ray burst (GRB) that lasted seven ...

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could ...

A team of researchers using the James Webb Space Telescope has produced the most detailed map of dark matter to date.

A physicist proposes that the universe is not empty space, but is a viscous fluid, fueling the expansion and contraction we see.

Faint structures play a crucial role in cosmic development, and scientists are only just beginning to grasp their full extent and role in shaping the universe.

Neutrino particles have extremely small masses, yet there are so many of them that they carve out the large-scale structure ...

You might think galaxies can’t ever find each other in our runaway cosmos, but it turns out gravity can sometimes overcome ...

A physicist proposes that the universe might not be empty but act like a viscous fluid, resisting expansion. This bold idea ...

Though sci-fi movies would have us believe that space is incredibly cold — even freezing — space itself isn't exactly cold. In fact, it doesn't actually have a temperature at all. Temperature is a ...