Are we ready for making contact with extraterrestrial intelligence?

The Search for ExtraTerrestrial Intelligence (SETI) is planning to actively send messages from Earth (Active SETI) to detect possible extraterrestrial civilizations.

Simulated ‘Mars mission’ ends after 520 days

An international crew of researchers on Friday walked out of a set of windowless modules after a grueling 520-day simulation of a flight to Mars.