2023-08-05 04:31:42
In this August 4, 1977, photo provided by NASA, the ‘Sounds of Earth’ disc is mounted on the Voyager-2 spacecraft at Kennedy Space Center, Florida. PA
The end of a big scare: NASA announced on Friday August 4 that it had fully restored communications with its legendary Voyager-2 probe, following inadvertently interrupting them at the end of July.
The probe, launched into space in 1977 and currently located 19.9 billion kilometers from Earth, “operating normally” and stayed well “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 succeeded in detecting the signal from Voyager-2 thanks to the « deep space network »an international network of antennas, indicating that it was in ” good health “. Then the“equivalent to an interstellar cry” has been 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.
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More than 18 hours before reaching the probe
Given the distance at which Voyager-2 is, 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 explained. American Space Agency which is now once once more receiving scientific and telemetry (distance measurement) data from the probe.
If that method hadn’t worked, 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 craft to enter interstellar space in 2012 and is currently regarding 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.
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