The celestial object is more than just a guest staying over for a quick visit. It's here to stay, or at least until ...

17 harvest moon and the Aug. 19 sturgeon moon. A meteor shower is celestial event that happens when Earth passes through the ...

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 ...

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 ...

A close flyby of an asteroid as large as Apophis happens only once every 5,000 to 10,000 years. Scientists plan to learn all they can.