Voyager 1 was launched on 5 September 1977 from Cape Canaveral Air Force Station, Florida, on a Titan IIIE-Centaur rocket.
Engineers at NASA's Jet Propulsion Laboratory reactivated thrusters on Voyager 1 that had been inactive for more than two decades to preserve spacecraft attitude control.
Voyager 1 is currently about 25,900 million kilometers from Earth.
Voyager 1 carried out pioneering flybys of Jupiter and Saturn during its planetary mission phase.
Voyager 1 was launched 16 days after Voyager 2 and later overtook Voyager 2 in trajectory and distance.
Voyager 1 is the most distant human-made object from Earth.
Voyager 1 carries the Golden Record, a time capsule containing sounds and images of Earth.
Voyager 1 is powered by a radioisotope thermoelectric generator that converts heat from the decay of plutonium-238 into electricity.
Several of Voyager 1's original experiments have been deactivated while instruments that study magnetic fields, particles, and plasma waves remain operational.
Mission controllers have systematically powered down less essential scientific instruments on Voyager 1 to conserve energy.
Scientists estimate Voyager 1 will continue to send useful data until the mid-2030s when its available energy is expected to be exhausted.
Voyager 1 entered interstellar space in August 2012.
In February 2025, the team of the Voyager probes deactivated an instrument on Voyager 1.
Voyager 1 is more than 25 billion kilometers from Earth, while Voyager 2 is over 21 billion kilometers away.
Voyager 1 and Voyager 2 were launched in 1977 and are powered by a radioisotope thermoelectric generator that loses about four watts of power each year.
Voyager 1 reached the edge of the heliosphere and the beginning of interstellar space in 2012.
It takes over 23 hours for a radio signal to reach Voyager 1 from Earth.
Voyager 1 launched in 1977.
Two of Voyager 1’s instruments started up immediately after commands were sent to the spacecraft on 2024-05-19, while the other two required additional work to resume operations.
A radio signal takes about 22.5 hours to travel between Earth and Voyager 1 and about 22.5 hours to return when the spacecraft is over 15 billion miles (24 billion kilometers) from Earth.