There were schools of thought in Ancient Greece that speculated about extraterrestrial life, in trying to answer questions ...

Gypsum is a soft, translucent sulfate mineral that allows just enough light to penetrate for photosynthetic organisms to survive inside, while also protecting them from being desiccated or exposed to ...

Scientists in Brazil have uncovered evidence of a previously unknown impact event recorded in hundreds of glassy fragments ...

Donald Trump’s pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government has hidden evidence of alien activity on Earth.

Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens -- with screensavers.

Past classified reviews looking for alien life have found stranger things about life in Washington.

President Trump directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that ...

President Donald Trump says he’s directing the Pentagon and other government agencies to identify and release files related to extraterrestrials and UFOs because of “tremendous interest.” ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

President Donald Trump on Thursday said he would direct the Pentagon and other government agencies to release government records related to extraterrestrial life and UFOs.

President Donald Trump says he's directing the Pentagon and other government agencies to identify and release files related to extraterrestrials and UFOs because of "tremendous interest." ...