Feb 2, 2026
Van allen belt
The are doughnut-shaped zones of energetic charged particles trapped by Earth’s magnetic field, first detected in 1958 by instruments on and subsequent early spacecraft . They normally form two princi...
Van Allen Belts
The Van Allen belts are doughnut-shaped zones of energetic charged particles trapped by Earth’s magnetic field. They are regions within Earth’s magnetosphere where ions and electrons become magnetically trapped.
Fact-Checks
2 resultsJan 6, 2026
How did Neil Armstrong, Michael Collins, and Buzz Aldrin manage radiation exposure during Apollo 11 in July 1969?
Apollo 11’s crew managed radiation exposure by a combination of engineering, operational planning and, candidly, good fortune: the command module’s aluminum hull provided modest shielding, the translu...