With a radius of only 52 miles (84 kilometers), Amalthea is significantly smaller than Earth's moon. Citizen scientist Gerald ...

Do you want to know how lonely our planet actually is? Just check out the latest images taken by the European Space Agency's Hera spacecraft. As it flew towards an asteroid, the probe captured photos ...

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 ...

As ESA's Hera mission for planetary defense departed its homeworld, it looked back to Earth to show the moon orbiting around ...

of Earth on Thursday. It won't reach its full lunar phase until Friday. An airplane flies past the moon as it rises over Lake ...

The biggest stories of the day delivered to your inbox.

The European Space Agency's Hera mission captured imagery of Earth and the moon shrinking as the spacecraft was en route to the asteroid Dimorphos.

NASA images provide insights into the sun, moon, planets, and stars. Recent highlights include solar flares, Jupiter’s features, a unique Earth photo, and the Witch Hat nebula, showcasing the dynamic ...

More a popular term than a scientific one, a supermoon occurs when a full lunar phase syncs up with an especially close swing ...

Vladimir Mayakovsky wrote a poem about it, including the following line: “Every proletarian should see the Planetarium!” The ...

An image released from the European Space Agency (ESA) shows a rare perspective of Earth 180 million miles away on Mars.