We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

From a Mars rover selfie to an astronaut's view of the flower moon, these space images will give you a new perspective on our ...

The team used the Multi-Unit Spectroscopic Explorer (MUSE) on the European Southern Observatory’s Very Large Telescope in ...

Matter in intergalactic space is not randomly scattered - it forms a vast network of filamentary structures that make up the ...

A stunning nebula and a sky dotted full of stars and dancing galaxies are in a set of three images released by the Vera C.

SKA is expected to go further than the existing telescopes creating images at a large range of redshifts, thus providing a tomographic three-dimensional scan of neutral hydrogen in the early universe.

A cosmic coincidence has led to one of the most amazing images ever captured by NASA’s James Webb Space Telescope.

The images show what appears to be clouds, but is in fact regions with less dense hydrogen and helium—over billions of years, gravity would pull the denser regions inwards, to begin building ...

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe's infancy—the earliest cosmic time yet accessible to humans. Measuring ...

Scientists didn't expect that stars would be able to still form in the dwarf galaxy known as Leo P, which the James Webb Telescope recently imaged.

Astrophotographer Miguel Claro captured a stunning view of the Lion Nebula in the Cepehus constellation, revealing colorful clouds of ionized hydrogen gas.