After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Our universe is full of mysterious sights and sounds. Explore some of our most frightful finds from past Halloweens.

NASA’s Coronal Diagnostic Experiment (CODEX) is set to launch to the International Space Station to explore new details about ...

A new video shows how Earth's magnetic field weakened and warped before temporarily flipping during a recent "polar reversal ...

Comet C/2024 S1 (ATLAS) passed its closest point to Earth on Oct. 23, reaching a magnitude of 8.7, far too dim to be seen with the naked eye. Still, telescopes were able to catch a glimpse of the icy ...

The Solar Ultraviolet Imager, or SUVI, onboard NOAA's GOES-19 satellite, which launched on June 25, 2024, began observing the ...

The technology-demonstrating Advanced Composite Solar Sail System has a bent boom in Earth orbit, but NASA says it shouldn't ...

NASA's mission to advance solar sail technology through the Advanced Composite Solar Sail System has shown promising signs, despite slight complications. The team is focused on collecting data to ...

Astronomers have been watching comet C/2024 S1 since it's discovered by a University of Hawaii telescope in September with hopes that it be the second comet of the year to grow bright enough to be ...

Aptera just completed a successful test drive of PI-2, the first production-intent version of its futuristic-looking ...

Watch Comet C/2024 S1 (ATLAS) make a death dive into the sun in this eerie footage from the Solar and Heliospheric ...