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Voyager 1 Hits Interstellar Milestone
11 Nov
Summary
- Voyager 1 reaches one light-day from Earth on November 18.
- Launched in 1977, the probe travels at 37,763 mph.
- A signal from Earth takes a full day to reach the probe.
Voyager 1 is poised to achieve a historic milestone, reaching one light-day from Earth on November 18. Launched in 1977, this NASA deep space probe has been journeying through interstellar space for nearly five decades. Its current distance signifies that a signal sent from Earth will take an entire day to reach the probe, illustrating the vastness of the universe.
The probe maintains a steady speed of 37,763 mph, a velocity attained in 1980. This journey marks a significant achievement, occurring 28 years after it surpassed Pioneer 10 to become the farthest human-made object. NASA is encouraging a global celebration, inviting people to participate in "shine Bright for Voyager's Light-Day" by creating a symbolic wave of light.
Originally designed for a four-year mission, Voyager 1 has far exceeded expectations. It was the first human-made probe to cross the heliosphere and continues its exploration. Despite its advanced age and limited data transmission rate, comparable to dial-up internet, the probe is expected to cease operations in the 2030s, with communication expected to end in 2036 due to dwindling power.