Humanity is on the way to confirming the existence of non-human entities and making contact with aliens within the next 50 ...

Recent observations suggest that scientists have identified potential microbial fingerprints in the atmospheres of other planets, raising intriguing questions about the possibility of alien life ...

The director behind one of the year’s buzziest UFO documentaries is now openly suggesting that a sitting president could be the person who finally tells the world whether intelligent life exists ...

Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...

Discovering extraterrestrial life has tantalized the public imagination as far back as Epicurean philosophers in Ancient Greece. Yet despite centuries of speculation, the search for alien lifeforms ...

As many as 200 worlds beyond our solar system discovered by astronomers may be larger than estimated, which could influence the search for extraterrestrial life. That's the theory of a team of ...

The Deep Space Network (DSN) is just the sort of tool aliens could one-day detect, transmitting from Earth. Credit: NASA/JPL What if the first signal ever detected from an alien lifeform wasn't a ...

Real or imagined, aliens challenge our beliefs of what it means to be human. July 2, 2013— -- Today is World UFO Day. People in different countries are coming together to share stories about ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In the late 1800s Italian astronomer Giovanni Schiaparelli pointed a telescope at Mars ...

AMHERST, Mass. — While popular culture commonly depicts extraterrestrial life as little green men with large, oval-shaped heads, it’s most likely that if there is life beyond our planet and within our ...