The Italian Space Agency has picked European company Blue Skies Space to build a fleet of satellites around the moon to map ...

New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against ...

According to our best understanding, the universe should be homogeneous at large scales. This means that it's ok to have ...

NSF–DOE Vera C. Rubin Observatory is gearing up to illuminate the universe’s darkest secrets with groundbreaking new ...

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

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it ...

About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say ...

Scientists may have finally found the universe’s missing matter - hidden in invisible hydrogen gas far beyond galaxies.

So it’s ok to have galaxy clusters and cosmic voids, but you won’t find structures extending for billions of light-years. Somebody must have forgotten to tell the universe, because there are ...

The halo is more extended that astronomers originally thought, and contains enough hydrogen gas to resolve the problem of the ...