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 ...

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

Goodnight room, goodnight moon. The Hera spacecraft, speeding on to an asteroid, took a look back at Earth's moon — and in a new animation, you can see our neighbor shrinking as Hera flies away.

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

Goodnight room, goodnight moon. The Hera spacecraft, speeding on to an asteroid, took a look back at Earth's moon — and in a new animation, you can see our neighbor shrinking as Hera flies away.

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.

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

The European Space Agency's Hera craft, en route to an asteroid, recently captured footage of our planet and the moon, set against the black ether of space. The two objects gradually shrink as Hera ...

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