Do you speak alien? For years radio telescopes have been listening to the cosmos in the hope of picking up an alien message. We have had no luck yet, so while we wait René Heller organised a trial run ...

The decision to actively send messages to aliens is controversial. There are two main avenues of thinking—the first, known as SETI (Search for Extraterrestrial Intelligence) is that we should actively ...

Humans aren’t just on the hunt for aliens with radiotelescopes and exoplanet research — we’re also actively trying to help aliens find us. One of the most well known of these efforts kicked off 44 ...