NASA's twin Voyager spacecraft are still flying in interstellar space. But their power is dwindling, and it's unclear how much longer they can last.

Voyager 1 and 2 are the first human-made objects in interstellar space, unveiling new findings. Voyagers' groundbreaking discoveries in the solar system exceeded NASA's original intentions.

Before the twin probes came to be, there was a much bolder proposal that would have delivered four spacecraft to the outer Solar System. Now we've missed the boat.

Add Yahoo as a preferred source to see more of our stories on Google. An artist's illustration shows one of the Voyager spacecraft flying through interstellar space at around 35,000 mph (56,000 kph). ...

Voyager 1 is on a journey that will outlast civilizations, outlive the Sun’s familiar neighborhood, and eventually drift into ...

The farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could boost the aging probe’s impressive lifespan.

In 1977, NASA launched an ambitious mission: Two spacecraft called Voyager 1 and Voyager 2 blasted off to investigate Jupiter and Saturn. They’re still gathering data today—now, in interstellar ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. NASA’s twin ...

The LECP has been operating almost without interruption since the Voyager 1 and 2 probes launched in 1977. Meanwhile, the power output of Voyager 1's RTGs has been declining by about 4 watts per year, ...

Voyager Technologies (NYSE: VOYG) was awarded a subcontract by Redwire (NYSE: RDW), the prime contractor for the DARPA Otter program, to supply its high-precision Acceleration Measurement System (AMS) ...