In a rare glimpse into the earliest days of our planet, scientists have discovered remnants of the “proto Earth.” ...

The rings of Saturn are among the wonders of our solar system, with a diameter of roughly 175,000 miles (280,000 kilometers) as they encircle the giant planet. But smaller celestial bodies in the ...

A discovery in V883 Orionis' planet-forming disk suggests Earth's water could have come from ancient interstellar ice that ...

"The detection of heavy water … proves the water's ancient heritage and provides a missing link between clouds, disks, comets ...