What does it take to detect a radio signal sent by extraterrestrial life to Earth? Two decades of work involving radio ...

If the thought of receiving radio signals from space conjures an image of Jodie Foster in the movie Contact, hunched over a computer console and listening for spaceship schematics beamed to Earth by ...

The detection of the special radio wavelength from the most distant galaxy means astronomers may be ready to investigate how the earliest stars form. When you purchase through links on our site, we ...

There’s no *69 option for this long-distance call. A newly discovered, yet still mysterious radio signal from the far reaches of space that repeats itself hourly is perplexing scientists. The ...

The universe is awash with strange radio signals, but astronomers have now detected a really bizarre one that repeats every hour, cycling through three different states. While they have some ideas ...

Astronomers discovered the TRAPPIST-1 system, a family of tightly packed planets swarming a red dwarf star, about eight years ago. Credit: Mark Garlick / Science Photo Library / Getty Images ...

Alien-hunters are focusing their telescopes on 'pulsar' stars to time their twinkles, giving them a new tool to sift through ...

Astronomers have detected a radio signal in our galaxy that blares for several minutes at a time, every 21 minutes, and has been doing so for at least 35 years. This bizarre signal doesn’t fit the ...