A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

A nearby 'super Earth' in one of the closest star systems to our own appears far more likely to support alien life than first ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...