A father-daughter duo from the US decoded an 'alien-like' message transmitted through a signal by the ExoMars Trace Gas Orbiter, a spacecraft of the European Space Agency orbiting Mars, in May last year. The message is a part of the "A Sign in Space" project aimed at engaging citizen scientists in decoding such signals.

As the European Space Agency spacecraft beamed a signal in May 2023, it was picked up by three observatories on the Earth, and the raw data was released online, giving scientists worldwide a chance to decipher the transmission, CNN reported