NASA’s Voyager 1 Gets a Power Boost From “Big Bang” Switch-Off 16 Billion Miles Out

Forty-nine years after launch, NASA’s Voyager 1 is still flying — and engineers just bought it more time. In early September 2026, mission teams completed the “Big Bang” power-saving operation on the probe, roughly six weeks after performing the same swap on its twin, Voyager 2.

ताजे अपडेट पाने के लिये हमारे ग्रुप को ज्वाइन करें Join Now

The operation shut down three power-hungry devices and replaced them with lower-power alternatives, carefully keeping heat evenly distributed across the frigid spacecraft. Without it, NASA would have been forced to turn off another science instrument as early as summer 2027. Both Voyagers lose about 4 watts of electrical power each year as their plutonium-powered generators slowly decay.

October also brought a heart-stopping moment for the mission team. NASA’s Deep Space Network missed Voyager 1’s signal during scheduled checks on October 18 and 19, leaving engineers with about 48 hours of silence. The signal returned on October 20. The cause: one thruster group had gone offline, and the spacecraft’s fault protection had automatically switched to backup thrusters.

Voyager 1 sits about 16 billion miles (24 billion kilometers) from Earth — the most distant human-made object ever built — traveling at roughly 61,155 kilometers per hour. On November 18, 2026, it will cross another milestone: one full light-day from Earth, meaning a one-way radio signal will take an entire 24 hours to arrive.

The Jet Propulsion Laboratory says the team expects more surprises between now and summer 2027. Nearly half a century after its 1977 launch, Voyager 1 remains humanity’s most remarkable long-distance phone call.

Read also: SpaceX Starlink launch October 27 puts up 27 satellites and NASA Artemis 3: three-rocket plan for the Moon