Over a year ago, we received a signal from Mars—an encoded message from Europe’s Martian orbiter, picked up by three observatories on Earth. The contents of this simulated alien message, crafted by an ...

A collaborative project dubbed “A Sign in Space” is a winner of the 2024 Gizmodo Science Fair for simulating a message to Earth from intelligent aliens. The project involved beaming an encoded message ...

Astrobiologists in Germany are developing a new testing device that could help tease dormant alien microbes into revealing themselves — and its key ingredient is a common amino acid that’s found in ...