So-called ring galaxies are extremely rare in the Universe, and they are thought to be the result of a very specific set of circumstances. Although space is mostly empty, galaxies are drawn together ...

Understanding where Earth's essential elements came from—and why some are missing—has long puzzled scientists. Now, a new ...

Samples from asteroid Bennu have delivered insights into the origins of Earth’s water and the organic molecules that may have ...

Earth received water toward the final stages of its formation. This reshapes understanding of the conditions needed for life.

A research team is investigating the influence of the Zagros Mountains on the bending of Earth's surface. A team of ...

Scientist have concluded water did not arrive as early during Earth's formation as previously thought, an insight that bears directly on the question of when life originated on the planet. The finding ...