Voyager 1 is more than 15 billion miles (25 billion kilometers) from Earth, while Voyager 2 is over 13 billion miles (21 billion kilometers) away, according to NASA. Both probes are the only ...

Laser-based system allows quantum-encrypted information to be beamed across the globe, plus — an AI that can improve other ...

Indeed, in the cosmic images below you'll glimpse some of the farthest ... (DSCOVR) satellite, you can see the rarely viewed dark side of the moon in front of the sunlit Earth.

Voyager 1 is more than 15 billion miles (25 billion kilometers) from Earth, while Voyager 2 is over 13 billion miles (21 billion kilometers) away, according to NASA. Both probes are the only ...