Voyager 1 Just Fired Up Thrusters It Hasn’t Used in Decades

Ashley Strickland, reporting for CNN:

Engineers at NASA have successfully fired up a set of thrusters Voyager 1 hasn’t used in decades to solve an issue that could keep the 47-year-old spacecraft from communicating with Earth from billions of miles away. [...]

As a result of its exceptionally long-lived mission, Voyager 1 experiences issues as its parts age in the frigid outer reaches beyond our solar system. When an issue crops up, engineers at NASA’s Jet Propulsion Laboratory in Pasadena, California, have to get creative while still being careful of how the spacecraft will react to any changes.

Currently the farthest spacecraft from Earth, Voyager 1 is about 15 billion miles (24 billion kilometers) away. The probe operates beyond the heliosphere — the sun’s bubble of magnetic fields and particles that extends well beyond Pluto’s orbit — where its instruments directly sample interstellar space.

Michael Chabon, on Threads:

I find the continuing mission of Voyager 1 so moving, for the way its name alone evokes a time of promise, for the thought of that tiny contraption way out there in the vastness at the edge of the heliosphere — perhaps the farthest any human-made thing may ever travel — a bit battered, swiftly aging, still doing the work it was purposed to do.

An amazing feat of engineering five decades ago, kept going by amazing feats of engineering today.

★ Wednesday, 18 September 2024