Voyager 1 is about to cross a threshold that sounds almost mythical: within about a year, the spacecraft will be a full light-day from Earth, so far away that its radio messages will take roughly 24 ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Voyager 1 is one of humanity’s most poignant and remarkable ...

It takes a beam of light a single day to travel 16.1 billion miles, a distance known as a light-day. It'll take Voyager 1, the American spacecraft moving at 10.6 miles per second, more than 49 years ...