The Voyager spacecraft - 1 and 2 - are deep in interstellar space. But there was a time when scientists weren't sure whether they would be able to penetrate the "wall of fire" at the edge of space.

For nearly five decades, NASA's twin Voyager probes have plumbed the cosmos in search of answers to some of astronomy's most perplexing mysteries about our solar system and its place in the wider ...

Whoops. NASA accidentally sent commands to Voyager 2 that cut off communications with the probe by pointing its antenna the wrong way. The satellite is programmed to reset its orientation multiple ...