Although 2025 did not set a new global temperature record, it still delivered clear signs of a warming planet.

From the ISS, NASA astronaut Don Pettit captured rare purple lightning and mysterious upper-atmosphere flashes above massive ...

A has been around since the Chernobyl explosion and Space Shuttle Challenger accident...but perhaps not for much longer.

Among other things, the James Webb Space Telescope is designed to get us closer to finding habitable worlds around faraway ...

A wall of water taller than most skyscrapers roared through a remote Greenland fjord, yet the strangest part of the story ...

On Jan. 11, the Pandora SmallSat launched atop a SpaceX rocket from Vandenberg Space Force Base in California. Tasked with ...

T he Hubble Space Telescope (HST) has been pivotal to progress in the last three decades of astronomy and cosmology.

The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument revealed low-lying radiation fog, formed by cool ground ...

First crewed mission of NASA’s Artemis campaign could launch as soon as February, with backup windows in March and April.

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

When the NASA Ice, Cloud, and land Elevation Satellite-2 launched in late 2018, it brought high-resolution data to a new ...

After a string of dramatic failures, the huge Starship rocket from SpaceX had a fully successful test on Oct. 13, 2025. A ...