The most consequential signal humanity ever detects from another civilization may not arrive as a calm introduction. It may ...

The search for alien life no longer feels like pure speculation. This video walks through the strongest signs ever put forward, from the Wow Signal to Martian fossil claims and other near-breakthrough ...

A recent SETI Institute study suggests that space weather could blur and weaken extraterrestrial radio signals long before ...

Ever since the bombshell exposé about the US Government’s UFO research program in 2017, the subject of extraterrestrial visitors has moved steadily from the conspiracy world into the mainstream. In ...

Scientists believe turbulent “space weather” around distant stars could be scrambling potential alien signals before they ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. If Earth’s ...

A simulated “alien” signal sent by a Nasa orbiter circling Mars has finally been cracked after months by a father-daughter duo, revealing the cosmic coded message. Nasa collaborated with SETI ...

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A new statistical study considers a narrower and ...

Scientists think they might have found an explanation for the “wow” signal that has long led to hopes it was contact from aliens. In August, 1977, the Big Ear radio telescope at Ohio State University ...

Telescopes on Earth have found evidence of intelligent alien life and the proof will be released in less than one month, a filmmaker claims. Simon Holland, who has worked on documentaries for the BBC ...

The Search for Extraterrestrial Life (SETI) Institute uses the so-called Rio Scale to gauge how excited the public and scientists should be about discovering alien lifeforms. The Rio Scale measures ...

Ever since the bombshell exposé about the US Government’s UFO research program in 2017, the subject of extraterrestrial visitors has moved steadily from the conspiracy world into the mainstream. In ...