The end of a big scare: NASA announced on Friday August 4 that it had fully restored communications with its legendary Voyager-2 probe, after inadvertently interrupting them at the end of July.
The probe, launched into space in 1977 and currently located 19.9 billion miles from Earth, is “operating normally” and has remained “on its expected trajectory,” NASA said in a statement. Commands sent on July 21 had mistakenly pointed the ship’s antenna in the wrong direction, away from Earth, interrupting data communication.
This week, NASA confirmed that it had successfully detected Voyager-2’s signal through the “deep space network”, an international network of antennas, indicating that it was in “good health”. Then the “equivalent of an interstellar scream” was sent, “ordering the probe to reorient itself and return its antenna to Earth,” NASA explained on Friday. The scientists explained that this technique was unlikely to work, but it finally paid off.
More than 18 hours before reaching the probe
Given Voyager-2’s distance, the command took just over 18 hours to reach it, and it took the same amount of time to be sure of the result, the agency said. American Space Agency which is now once again receiving scientific and telemetry (distance measurement) data from the probe.
If that method didn’t work, NASA hoped an automatic reorientation maneuver would fix the problem, but that wasn’t expected until a distant date, in October.
Voyager-2 left the protective bubble of the Sun, called the heliosphere, in 2018 to enter interstellar space. Before leaving the solar system, it became the only probe to fly over Uranus and Neptune.
Its twin Voyager-1, also launched in 1977, became the first spacecraft to enter interstellar space in 2012 and is currently about 24 billion kilometers from Earth.
The two probes, legendary NASA missions, each carry recordings of sounds and images of the Earth on gold and copper plates.