Add Yahoo as a preferred source to see more of our stories on Google. When 12 alien spacecraft arrive at points around the globe, a collection of scientists, language experts, and military personnel ...

A simulated “alien” signal sent by a Nasa orbiter circling Mars has finally been cracked after months by a father-daughter duo, revealing the cosmic coded message. Nasa collaborated with SETI ...

The SETI Institute continues to push the boundaries of space exploration and our understanding of the universe. From deciphering alien messages to searching for extraterrestrial intelligence and ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...

On a hot November day in the tropical forest of Arecibo, Puerto Rico, amongst the croaking of coquís, the message went out. Warbling audio crackled over loudspeakers—the audible result of the work of ...

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 ...

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Scientists are hard at work considering what kinds of engineering alien probes would need to reach us through interstellar space. However, crossing deep space to reach Earth with a probe would require ...