The moon performed a cosmic ballet with Mars this week.

So I grabbed my camera, ran outside, and looked up just as Mars was supposed to emerge from the Moon's curved horizon. Seen ...

Sitting in the middle of the Iranian plateau, the Dasht-e Kavir, or Great Salt Desert, is the planet’s 24th largest desert.

January’s full moon, the “Wolf Moon,” rose alongside Mars at its brightest, occulting it for a short period as seen from ...

A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's ...

A spacecraft named BepiColombo is currently zipping by planet Mercury, making a very close flyby and snapping incredible high ...

A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them ...

Mars will seem to disappear behind the full wolf moon Monday for many sky-gazers. Throughout January, also look up to see ...

The larger moons of Pluto and Earth likely formed through a collisional process with Charon and our moon, respectively, ...

Accessible to anyone the world over, witnessing the majesty of the solar system, including the Milky Way, and its billions of ...

From a telescope network that spans much of the globe to a psychology study that spans 67 countries, here are the biggest ...

This is a NASA Hubble Space Telescope ultraviolet-light image of the planet Venus, taken on January 24 1995, when Venus was at a distance of 70.6 million miles 113.6 million kilometers from Earth.