Scientists use Allen Telescope Array to search for radio signals in the TRAPPIST-1 star system

Astronomers Use New Technique to Search for Alien Signals Between Planets

A new search technique has allowed astronomers to target exoplanets that align with Earth and each other in search of radio signals that could indicate interplanetary communication.

Searching for alien signals sent between exoplanets

We on Earth now send radio signals to and from our robot spacecraft on or orbiting our solar system’s other worlds. Might civilizations in distant solar systems do the same? Scientists at the SETI Institute and Penn State University said on October 16, 2024, that they’ve been searching. They said they used radio telescopes to search for signs of alien communications between the seven exoplanets in the TRAPPIST-1 system.

Scientists look for alien technology from the TRAPPIST planets

Since its discovery eight years ago, the TRAPPIST-1 star system has excited astronomers because of its potential for supporting life. Around this cool red dwarf are seven rocky, Earth-sized exoplanets, some of which are at the right distance to possibly have air and water.

Are nearby planets sending radio signals to each other?

Researchers have developed a new method using the Allen Telescope Array to search for interplanetary radio communication in the TRAPPIST-1 star system.

Allen Telescope Array Searches for Radio Technosignatures from TRAPPIST-1 System

The TRAPPIST-1 system is a compact system of at least seven exoplanets with sizes similar to Earth.

Scientists searching distant solar system for possible alien radio signals

Astronomers did not find signals of alien life – but study helped refine techniques that eventually could