It was a simple question asked over lunch in 1950. Enrico Fermi, the Nobel Prize-winning physicist who helped usher in the ...

NASA's discoveries reveal water's prevalence beyond Earth, from subsurface oceans on moons to vapor in exoplanet atmospheres.

The search for life beyond Earth is a holy grail quest for many experts, but finding where to look is a core issue.

For decades, humanity has been searching the cosmos for signs of extraterrestrial life, yet we remain alone in our corner of the universe. Despite the vastness of space and the billions of potentially ...

For some of us on planet Earth, the search for extraterrestrial planets that could support life is a matter of expanding ...

How would we communicate with extraterrestrial life forms? Scientists are investigating how we can prepare for contact with ...

Humpback whales have been caught blowing bubble rings at humans in what may be playful or communicative acts. This discovery ...

Do aliens exist? Based on how many alien invasion movies there are, you'd be forgiven that there's gotta be some proof of ...

Humpback whales may be communicating with humans in a playful way, according to researchers who have been studying the marine ...

Now, a former US Air Force pilot has shared what he calls his "wildest experience" involving two mysterious objects during his time in service. Ryan Bodenheimer, who served with the elite Thunderbirds ...

How can radio astronomers successfully identify extraterrestrial radio signals while discerning them from Earth-based radio signals? This is what a recent study published in The Astronomical Journal ...

Retired NASA agent Joseph Gutheinz dismisses UFO claims, noting interstellar travel would take 70,000 years and suggesting ...