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.

How can Einstein's theory of gravity be unified with quantum mechanics? This is a challenge that could yield deep insights into black holes.

The mission, which will land on the moon next June, is made up of five small robots that will be placed on the lunar surface.

The galaxy, dubbed Alcyoneus, is a large radio galaxy that spans 16.3 million light-years or roughly 150x the span of the Milky Way galaxy.

Asteroid 16 Psyche, which NASA intends to visit with a spacecraft in 2026, may be less heavy metal and more hard rock than formerly thought.

A team of German astronomers have discovered a strange new type of star covered in the by-product of helium burning.

A new study suggests the existence of a direct interaction between the elementary particles that make up the dark matter and ordinary matter

New research from Washington University in St. Louis suggests a fundamental reason why Mars has no water on its surface.

MUSE and HelioSwarm will help improve our understanding of the dynamics of the Sun-Earth connection, and the changing space environment.

All life consists of the same chemical building blocks. These include peptides, which perform various completely different body functions.

Researchers have confirmed that a possible microlensing event witnessed in 2011 was due to the presence of a rogue black hole.

A US-based startup aims to build robotic outposts and spacecraft that can be sent to space near the Moon.

Astronauts in orbit could soon be using robots to explore lunar or planetary surfaces without having to expose themselves to danger.

A state-of-the-art asteroid alert system can scan the entire dark sky every 24 hours for dangerous bodies that could plummet toward Earth.

The hydrothermal crater lake of the Poás volcano in Costa Rica is one of the most hostile habitats on the planet.

Physicists looked at specific features of light to figure out the closest you can get to a black hole without having to prevent disaster.

Liquid water previously detected under Mars’ ice-covered south pole is probably just a dusty mirage, according to a new study.

According to a study by a team of scientists, Saturn's mini-moon Mimas may have a "liquid water ocean beneath a 24-31 km thick ice shell".