Binar Satellites Burn Up Due to Solar Activity
Curtin University’s Binar CubeSats (Binar-2, 3, and 4) burned up prematurely in Earth’s atmosphere due to heightened solar activity in Solar Cycle 25, which increased atmospheric drag in Low Earth Orbit (LEO). Unlike Binar-1, which lasted nearly a year, these satellites were operational for only two months. Lacking thrusters to counteract drag, university satellites like Binar are particularly vulnerable during high solar activity. The Binar Space Program is now planning launches during quieter solar conditions anticipated after 2026. This event highlights challenges posed by solar cycles on space missions, particularly for LEO satellites.
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