The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are ...

An asteroid the size of a skyscraper is approaching Earth at 24,136 miles per hour. The giant asteroid will be at its closest ...

A giant space rock the size of New York's Chrysler Building will make a close pass by Earth Thursday, and it could get even ...

The composition of crystals in volcanic rocks changes with their ages in ways that correlate with the Solar System’s ...

Earth will move between Saturn and the sun this weekend, offering prime views of Saturn in what's known as "opposition." Here's what to know.

Scientists believe they have discovered evidence of a hidden planet existing beyond Neptune, which they have named 'Planet Y'. Recently, a study analyzing the orbits of Kuiper Belt objects indicated ...

The Kuiper Belt is loosely defined as a doughnut-shaped swath of space beginning just beyond the orbit of Neptune and ...

"This is four times more people than saw Neil Armstrong walk on the moon. Think about what a world event this is going to be." ...

According to Dean Duffy, the new NASA administrator, a rock sample collected by the Perseverance rover was the "clearest sign ...

The long-standing idea of planets forming in perfectly flat, orderly discs has been challenged by new research. Instead of ...

This week, a rare planet parade featuring Venus, Jupiter, Saturn, Uranus, and Neptune will light up the early morning sky. A ...

Astronomers have discovered the raw ingredients of planets orbiting two infant stars, offering a glimpse into how new worlds ...