aliens

As if it were rings in the trunk of a tree, this image from the James Webb telescope has provoked all kinds of comments.

Carl Sagan was one of the great defenders of the SETI program. After more than 60 years without finding a single bit of evidence, is it worth continuing to search?

Suppose we detect an emission from an extraterrestrial civilization. Would we understand something of the message? There is no Rossetta stone for communication with ET

The War of the Worlds, Mars Attacks!, Stargate, The Invasion of the Ultrabodies, Space Troops... Science fiction has shown us how ET could invade us. But would we survive?

The existence of life in the different bodies of our Solar System has been believed by numerous scientists throughout the centuries. The popularity of this idea has been such that crazy proposals launched as jokes have been believed.

We may have to wait quite a while to greet the aliens. Scientists have concluded two possible scenarios in this case: one optimistic and one pessimistic. We tell you here.

We have been trying to communicate with aliens since 1959 but it seems that they are not very interested in doing it with us. Scientists have figured out why this is so.

In July 1947, a ship from another planet crashed in the New Mexico desert, near the town of Roswell, and, of course, the American government arranged it without asking for permission.