An alien comet passing through our solar system made its closest approach to Mars recently, and two European robotic ...

Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

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

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 ...

If you’ve been following the hubbub about 3I/ATLAS, you’re probably either in the camp that thinks it’s just a comet from ...

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

Eight planets travel in circular paths around a burning ball of gases, called the Sun. Welcome to our Solar System, our space ...

KENNEDY SPACE CENTER — SpaceX’s Falcon 9 rocket pierced the Wednesday morning sky as it launched three spacecraft from NASA and NOAA that will study the solar system’s “bubble,” collect information on ...