An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

If forced to choose one descriptor for the octopus, the best word may be "otherworldly." These truly amazing marine animals ...

The subject of UFOs and aliens is vast and complex, making it impossible to summarize in one article. Flying saucers/UFOs made headline news throughout the world in 1947, sparked by two major, highly ...

I thought about the interstellar visitor as my daughter, wife, and I took turns dragging his wandering monster truck balloon ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

Trump has ordered a UFO data release. But if aliens exist, what would they think of us? - For generations, human beings have wondered: What would alien life from another planet be like ...

Trump has ordered a UFO data release. But if aliens exist, what would they think of us? - For generations, human beings have wondered: What would alien life from another planet be like ...

For decades, the peculiar shard occupied a unique space between fringe speculation and legitimate scientific curiosity. Its unusual composition and alleged properties, including a supposed capacity ...

Inspired by Firefly, we've put together a list of other fun sci-fi Western shows, and you better believe we included Wild ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

Scientists at the Rubin Observatory have identified nearly 11,000 asteroids, including hundreds beyond Neptune and 33 ...