From a flashing blue streak to falling smoke, we now know what caused strange sightings in the sky above Hawaii this week.

Three people find a meteorite and take it home. Over the next few nights, a series of strange and ominous events begins to ...

Stargazers rejoice! Dec. 4 marks the start of the annual Geminid meteor shower, as Earth passes through the trail of debris ...

On a scorching summer afternoon at Grootfontein, Namibia, a curious paradox greets every visitor to the Hoba meteorite.

The Kecksburg UFO incident occurred on December 9, 1965, when a fireball was spotted in the sky and seemed to land in ...

"I'm becoming much more optimistic that we may be able to find life beyond Earth, even in our own solar system." ...

NASA's Perseverance rover found rocks on Mars that on Earth usually form in tropical environments. That Mars once hosted ...

On the afternoon of November 30, 1954, in Sylacauga, Alabama, Ann Hodges was resting on her living room couch when something ...