Regener-Pfotzer maximum Archives

What if the amount of radiation you encounter on a flight depends not just on how high you fly, but on what the Sun is doing? A new study using high-altitude balloons over southern Israel found that cosmic radiation at commercial flight altitudes rises as solar activity falls, with levels potentially increasing by 40% to 60% during solar minimum conditions. The findings could help improve how radiation exposure is assessed for aircrew and frequent flyers. -- Hebrew University of Jerusalem

Cosmic Radiation at Flight Altitudes Rises When the Sun Is Less Active

by Keith CowingSeptember 11, 2026September 11, 2026

[Hebrew University of Jerusalem]. Radiation from space is constantly entering Earth’s atmosphere, but how much of it reaches the altitudes used by commercial aircraft depends not only on height and […]

Regener-Pfotzer maximum

Cosmic Radiation at Flight Altitudes Rises When the Sun Is Less Active

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Cosmic Radiation at Flight Altitudes Rises When the Sun Is Less Active

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