From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

SETI scientists observing a pulsar’s radio pulses over time are redefining how astronomers time pulsars and search for ...

Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening enough. An outlandish study asserts that aliens might have abducted us ...

Alien: Earth definitely gets a lot right, but after watching the season 1 finale, I'm torn, because it gets a lot of things wrong, too. There's clear commitment to certain aspects of the Alien ...

The Alien franchise has always focused on just one titular alien — the Xenomorph. Yes, over the years, we got extrapolations of the Xenomorph, like the Queen, and the facehuggers. Yet they all still ...

“Alien” mantis species Liturgusa maya may have arrived in the Galápagos as a stowaway in agricultural material, according to a study. Getty Images/iStockphoto The newly confirmed presence of an “alien ...

The newly confirmed presence of an “alien,” or non-native, mantis species on the Galápagos Islands has experts concerned about its impacts on the archipelago’s delicate ecosystem. Even more concerning ...