Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

A team of scientists has proposed a revolutionary idea to explain one of the greatest contradictions in our understanding of ...

A new analysis of the sky has finally confirmed where the missing half of the Universe's visible matter has been hiding.

By mapping the brightest explosions in the universe, scientists may have uncovered a megastructure that defies our ...

A never-before-seen image of the cosmic microwave background, combining data from the Atacama Cosmology Telescope (ACT) and the Planck satellite, offers a high-definition view of the early ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

Astrum What's Beyond the Edge of the Observable Universe? Posted: March 26, 2025 | Last updated: March 26, 2025 There’s a point in the universe where no light, no signal, and no matter can reach ...

After five years of staring unblinking at the sky, the Atacama Cosmology Telescope (ACT) has compiled the most detailed map we've ever seen of the cosmic microwave background – the faint light that ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...