Pop culture is full of references to messages from outer space. Some of them were friendly attempts at communication, such as the five-note musical sequence transmitted to Earth by aliens in Close ...

From the world's oldest known human fingerprint to genetic discoveries made using 2.2 million-year-old tooth enamel, this week's science news has taught us a lot about our ancient ancestors. But we've ...

Scientists have detected strange radio signals coming from below the ground in Antarctica. A cosmic detector flying high above Antarctica picked up the strange pulses, which appear to be rising up ...

Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...

"This is a unique opportunity to learn how the universe's first light emerged from the darkness." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Spacecraft navigation explained with radio tracking, optical systems, and autonomous methods that enable deep space ...

"Our results don't solve the mystery of the Wow! Signal, but they give us the clearest picture yet of what it was and where it came from." When you purchase through links on our site, we may earn an ...

As a result, the signals do not fall within the downlink frequencies approved by the International Telecommunication Union (ITU) — a United Nations agency that coordinates the use of the radio ...