In 1964, Soviet astronomer Nikolai Kardashev introduced a revolutionary system for classifying civilizations by their ability ...

Intelligent alien life has remained elusive despite decades of searching the skies, but new technologies and ideas are ...

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how ...

Some UFO cases remain difficult to explain, but that is only the beginning of the scientific question. The evidence needed to ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

The mathematical certainty that 'they' definitely exist in the universeWhen looking up at the night sky, everyone has surely ...

In the coming month, humans are going to experience their first encounter with an alien civilization as predicted by blind ...

A new study proposes searching the moon for remnants of ancient extraterrestrial technology. Researchers suggest the moon's surface could preserve microscopic "technosignatures" left by alien ...

"...Should I go shopping today, too?" He used a calendar. So he knew that today was January 1st, 2101, the momentous New Year ...

In fact, all people, including non-Westerners who aren’t yet its beneficiaries, should want to celebrate, defend and ...

Researchers earlier this month said they used the MeerKAT radio telescope in South Africa to detect radio waves on Beta Pictoris b.

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...