To learn how ocean water is melting glaciers, NASA’s Oceans Melting Greenland mission surveyed the coast of the world’s largest island.

New research shows the dominant color has changed in about one-third of large rivers in the continental United States over the past 35 years.

Caltech researchers used the Mars Reconnaissance Orbiter to determine that surface water left salt minerals behind as recently as 2 billion years ago.

The spiral arms of the galaxy NGC 3318 are lazily draped across this image from the NASA/ESA Hubble Space Telescope.

NASA’s James Webb Space Telescope team will answer questions about the mission’s latest milestones on Jan. 24.

NEA Scout will visit an asteroid estimated to be smaller than a school bus – the smallest asteroid ever to be studied by a spacecraft.

In preparing for Flight 19, the Mars helicopter team found that unexpected Mars weather can result in a scenario familiar here on Earth: a delayed flight.

A black hole at the heart of the dwarf galaxy Henize 2-10 is creating stars rather than gobbling them up.

An international research team will survey the stars, star clusters, and dust that lie within 19 nearby galaxies.

The lander has taken measures to conserve energy; engineers aim to return to normal operations next week.

Europa Clipper will need to know its orientation while traveling from Earth to Jupiter and in orbit around Jupiter. To accomplish this, it will use the stars.

Scientists have announced that samples collected by Curiosity are rich in a type of carbon associated with biological processes on Earth.