NASA’s Van Allen Probe A to Re-Enter Atmosphere

NASA's Van Allen Probe A is expected to re-enter Earth's atmosphere almost 14 years after launch. From 2012 to 2019, the spacecraft and its twin, Van Allen Probe B, flew through the Van Allen belts, rings of charged particles trapped by Earth's magnetic field, to understand how particles were gained and lost. The belts shield Earth from cosmic radiation, solar storms, and the constantly streaming solar wind that are harmful to humans and can damage technology, so understanding them is important.

As of March 9, 2026, the U. S. Space Force predicted that the roughly 1,323-pound spacecraft will re-enter the atmosphere at approximately 7:45 p.m. EDT on March 10, 2026, with an uncertainty of +/- 24 hours.

Originally designed for a two-year mission, the Van Allen Probes A and B launched on Aug. 30, 2012, and gathered unprecedented data on Earth's two permanent radiation belts — named for scientist James Van Allen — for almost seven years. NASA ended the mission after the two spacecraft ran out of fuel and were no longer able to orient themselves toward the Sun.