If intelligent alien civilizations do exist, scientists think they could be using powerful flashlights to communicate with us. Astronomers have started to explore the idea that aliens could be trying ...

In the last decade, the Keck Observatory in Hawaii, one of the world’s most powerful telescopes, has spent hours staring at the night sky in search of exoplanets and accumulating huge amounts of data ...

Explore how physicists are using light beams in the search for extraterrestrial life within the Andromeda Galaxy's trillion stars. Physicists at the University of California, Santa Barbara are taking ...

A pair of MIT researchers has proposed a radical method for making our presence known in the universe. In a new feasibility study, the team says it could be possible to use laser technology as a ...

An amateur astronomer was gazing at the stars through her telescope when she noticed something bizarre. Just past her sighting of the moon, Paula Gilley could see Saturn. Article continues below ...

Experts still debate whether sending signals into space is actually a good idea – or whether it will alert potential invaders to our presence. But a new plan suggests that we could create a ‘laser ...

Conspiracy theorists have been left fearing an alien invasion or even the apocalypse after a spectacular image captured beams of light shooting into the night sky. The intriguing picture shows blue ...

It's a fair bet that aliens are more like The Klingons than The Clangers. Which means that if an aggressive extraterrestrial species manages to spot Planet Earth, they're probably going to come and ...

The new telescope, which has a 1.8m (72-inch) primary mirror, is the first dedicated optical Seti (Search for Extraterrestrial Intelligence) telescope in the world. It has been installed at the ...

The technology already exists to create a planetary porch light to tell aliens we're at home A GIANT telescope could use a powerful laser to tap out messages to alien stargazers, a new study has ...

Black holes are spacetime regions exhibiting such powerful gravitational effects that nothing – even light — can escape. Our understanding about black holes is beginning to grow, following the Laser ...