Astronomers have been curious about the makeup of Ceres, the largest object in the asteroid belt, ever since its discovery by ...

For the past couple of weeks, Earth's orbit has been home to a "mini-moon" the size of a city bus. The celestial object is ...

This week's special full moon will be the last supermoon to be seen for a year, followed by a bright cosmic meteor shower ...

For nearly 40 years, scientists have generally agreed that Earth's Moon formed from debris after a massive collision with our ...

The European Space Agency's Hera mission is on its way toward Mars, where it will get a gravity assist before going on to its asteroid target.

Underneath the icy, rocky surface of asteroids – such as the 16 Psyche which is about 124 miles wide – there’s an estimated ...

ESA's Hera mission has completed the first critical maneuver on its journey to the Didymos binary asteroid system since ...

DART's goal was to examine how well a planetary defense strategy in moving a threatening space rock away from Earth. Hera will examine the collision from a nearby vantage point, providing a different ...

A new study suggests that the planet’s icy interior and liquid ocean could be insulated with a three-to-six-mile-thick layer ...

A new European Space Agency mission is set to study asteroid Apophis to learn more about how we can handle asteroid threats ...