Landmarks / Inner Van Allen belt
Inner Van Allen belt
A ring of trapped radiation starting around 1,000 km.
- Real height
- 1,000 km
- Points needed
- 618
- Zone
- Near space
- Landmark
- 16 of 25
About Inner Van Allen belt
The Van Allen belts are rings of charged particles trapped by Earth's magnetic field, discovered in 1958 from data returned by the first American satellite. The inner belt begins at roughly 1,000 km and extends several thousand kilometres higher.
Spacecraft that must cross it use shielding and pass through quickly. The Apollo crews flew through the belts on their way to the Moon and received only a modest dose of radiation.
Inner Van Allen belt in Clamber
You reach this landmark at 618 points. It is landmark 16 of the 21 between the ground and the Moon, which waits at 930 points. Its real height is about 1.9 times that of the previous landmark, Hubble Space Telescope.
Answers are worth 0 to 100 points depending on how rare they are, so even a run of nothing but the rarest answers needs at least 7 holds to get here. A fall drops you to just below the last landmark you passed, so a landmark you have reached can slip away again. See how to play for the full rules.