When Voyager 1 and 2 crossed the boundary of the heliosphere, many believed they would drift silently into a cold, empty ,voidinterstellar space. It was expected to be a lifeless region, too sparse ...

Researchers have looked into how far away the Voyager spacecraft could go while we could still detect them, and worked out ...

NASA's Voyager 2 spacecraft made its closest approach to Jupiter. It came within 354,000 miles (570,000 kilometers) of the ...