Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...

Neptune's far-flung moon Nereid may be the last of the planet's original companions that managed to survive a cosmic crash, ...

Neptune’s moons have long provided evidence of a cataclysm four billion years ago. A new study suggests one moon may have ...

Voyager 1 is on a journey that will outlast civilizations, outlive the Sun’s familiar neighborhood, and eventually drift into ...

Study changes what we know about Neptune and its mysterious moon Nereid - Nereid was discovered by Dutch astronomer Gerard ...

On May 18, an asteroid about the size of Chicago’s Cloud Gate will fly four times closer to Earth than the moon.

Newly spotted asteroid 2026 JH2, which could be up to 115 feet wide, will fly past Earth closer than some satellites on ...

A newly discovered asteroid named 2026 JH2 will pass by Earth at a distance of about 56,000 miles. The moon, by comparison, ...

The livestream will begin at 3:45 p.m. EDT on May 18, bringing near real time views of the asteroid from robotic telescopes ...