Cape Canaveral: NASA has finally heard back from Voyager 1 again in a way that makes sense. The most distant spacecraft from Earth stopped sending back understandable data last November. Flight controllers traced the blank communication to a bad computer chip and rearranged the spacecraft's coding to work around the trouble.
NASA's Jet Propulsion Laboratory in Southern California declared a success after receiving good engineering updates late last week. The team is still working to restore the transmission of the science data.
It takes 22 1/2 hours to send a signal to Voyager 1, more than 15 billion miles (24 billion kilometres) away in interstellar space. The signal travel time is double that for a round trip.
Contact was never lost, rather it was like making a phone call where you can't hear the person on the other end, a JPL spokeswoman said Tuesday.
Launched in 1977 to study Jupiter and Saturn, Voyager 1 has been exploring interstellar space — the space between star systems — since 2012. Its twin, Voyager 2, is 12.6 billion miles (20 billion kilometres) away and still working fine.