President Trump calling out the Dem senator from Arizona may raise the question: Who is Mark Kelly? Navy captain, astronaut, Gabby Giffords' spouse.

One of the toys getting everyone’s attention this year is Clixo, a STEAM building toy that inspires exploration rather than ...

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NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar ...

Scientists flew the XL-Calibur telescope on a high-altitude balloon to measure polarized X-rays from Cygnus X-1. These ...

Researchers have pinpointed a super-Earth in the habitable zone of a nearby M-dwarf star only 18 light-years away.

Key Takeaways An ancient wanderer from beyond our solar system adjusts its path with uncanny accuracy. Scientists spot a fine ...

Nasa astronaut Zena Cardman captured the glow of the Northern Lights, or aurora borealis, from above on the 17 November while ...

Some big names from the world of footy were overjoyed when the AFL great and multi-code star made the big reveal online.

Several cameras flew on the NASA's Artemis 1 mission delivering breathtaking views of launch, re-entry and the moon. See ...

The space agency maintains the object is natural despite Harvard physicist Avi Loeb's claims regarding anomalous jet ...

New police logs contradict an official UFO dismissal after a U.K. helicopter crew reported an emergency dive to avoid a ...