A NASA ISS livestream sparks debate after bright lights appear before a brief signal loss, with experts saying the sighting was likely routine Earth lighting.

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

When the interstellar comet flew by the red planet in October, multiple NASA missions pivoted from their explorations to capture tantalizing images of the object that originated outside of our solar ...

NASA has a photo dump of the interstellar comet 3I/ATLAS. It made news in July when it was confirmed to have originated ...

Discovered over the summer, the comet 3I/Atlas is only the third confirmed object to visit our corner of the cosmos from another star. It zipped harmlessly past Mars last month.

NASA ISS livestream switches to a signal-loss slate after a bright object crosses the frame, sparking UFO questions online as NASA cites routine automated handoffs.

Increased solar activity causes auroras that dance around Earth’s poles, known as the northern lights, or aurora borealis, ...

Parts of Pennsylvania and New Jersey are above the view line for Wednesday night's potential encore of the northern lights ...

Northern Lights may dazzle again tonight as a severe geomagnetic storm reaches peak intensity across regions. Follow live.

The northern lights dazzled skies across the U.S. Tuesday night, caused by a geomagnetic storm that reached G4 intensity.

According to the National Oceanic and Atmospheric Administration (NOAA), two coronal mass ejections (CMEs) are expected to ...