NASA’s resilient Van Allen Probe A is making its long-awaited, and unexpectedly early, return to Earth today, March 10, 2026, as it hurtles toward an uncontrolled reentry into the atmosphere.
According to the latest update from NASA (issued March 9, 2026), the U.S. Space Force tracking data predicts the roughly 1,323-pound (600-kilogram) spacecraft will plunge through the atmosphere at approximately 7:45 p.m. EDT (which is 6:15 a.m. IST on March 11, 2026), with a ±24-hour uncertainty window.
NASA and the Space Force continue real-time monitoring via Space-Track.org for any refinements to the timing or trajectory.
Launched in August 2012 as one of NASA’s twin Van Allen Probes (alongside Probe B), the mission dove deep into Earth’s hazardous Van Allen radiation belts, those iconic doughnut-shaped zones of trapped charged particles held by our planet’s magnetic field.
These belts serve as a natural defense shield against cosmic rays, solar wind, and intense solar storms, but they’re brutal on spacecraft hardware.
Designed for just two years, the probes astonishingly operated for nearly seven years until fuel ran out in 2019, setting endurance records in one of space’s most punishing environments.
Their data revealed game-changing insights, including the first direct evidence of a temporary third radiation belt forming during strong solar activity, a discovery that fueled hundreds of scientific papers and improved models for protecting satellites, astronauts, and power grids from space weather.
Post-mission orbital decay forecasts pointed to a reentry around 2034, but the current solar cycle’s unexpectedly high activity has supercharged upper-atmosphere expansion and drag, accelerating Probe A’s descent by about eight years.
During the fiery plunge, most of the probe is expected to vaporize from extreme frictional heating. However, NASA cautions that some durable components (such as dense metal parts) may survive to reach the surface.
The agency rates the overall public safety risk as very low, about 1 in 4,200 chance of injury to any person, with any surviving debris statistically favored to land in remote oceans or sparsely populated regions.
Its twin, Van Allen Probe B, orbits higher and isn’t expected to reenter until at least the 2030s.
This dramatic finale closes out one of NASA’s most impactful studies of near-Earth space, underscoring how dynamic our Sun can be, even turning a planned slow fade into a spectacular, accelerated homecoming.
Signpost News is an Imphal-based media house that focuses on delivering news and views from Northeast India and beyond.
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