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Alfvén waves act as the power source behind Earth's auroral displays, research reveals
- January 28, 2026 at 4:48 PM
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The dazzling lights of the aurora are created when high-energy particles from space collide with Earth's atmosphere. While scientists have long understood this process, one big mystery remained: What powers the electric fields that accelerate these particles in the first place?
Originally published at Phys.org