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CAPE CANAVERAL, Fla. — 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 success after receiving good engineering updates late last week. The team is still working to restore transmission of the science data.
It takes 22½ hours to send a signal to Voyager 1, more than 15 billion miles 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 NASA 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 away and still working fine.
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Science and Educational Media Group.
