Earth-based telescopes that look that far back to the big bang (BB) 13.8 billion years ago are unable to resolve the relevant details.

NASA's priority should be the Enceladus Orbilander - a mission to search for evidence of life on Enceladus, Saturn's sixth-largest moon.

Signs of a planet transiting a star outside of the Milky Way galaxy may have been detected for the first time.

Water is essential for life on Earth and other planets, and scientists have found ample evidence of water in Mars’ early history.

Researchers have identified a distant object with properties that lie in-between those of a galaxy and those of a so-called quasar.

Astronomers have found a slimmer type of red giant star for the first time. These stars have undergone dramatic weight loss.

The larger the mirror, the more light is collected. This means that we can see farther back in time to observe star and galaxy formation.

For more than 60 years, scientists have been searching for possible signs that would indicate the existence of extraterrestrial intelligence

A powerful radio-wave laser, called a ‘megamaser’, has been observed by the MeerKAT telescope in South Africa.

An international team of astronomers has spotted the most distant astronomical object ever: a galaxy some 13.5 billion light-years away.

Ice volcanoes emit a "thicker, slushy mix of ice and water, or perhaps a solid flow like glaciers" rather than lava.

Researchers have helped unravel the enduring mystery of the origins of the Earth’s water, finding the Sun to be a surprising likely source.

Researchers have discovered a new form of ice, redefining the properties of water and our understanding of distant, water-rich planets.

Water is essential for life on Earth and other planets, and scientists have found ample evidence of water in Mars’ early history.

Earth is believed to have formed partly from carbonaceous meteorites, which are thought to come from outer main-belt asteroids.

Astronomers identified a number of stellar streams from past mergers years ago, and also used globular clusters to construct a timeline.

Our galaxy is a giant ‘smoothie’ of blended stars and gas but a new study tells us where the components came from.

Astronomers have used a new technique to confirm a real-life Tatooine, the fictional planet with two suns that was home to Luke Skywalker.

When tiny galaxies collide with bigger ones, the bigger galaxies can strip the smaller galaxies of their dark matter which we can’t see.

Black holes are more than just massive objects that swallow everything around them—they're also one of the universe's biggest energy sources