WASHINGTON, D.C. — Scientists threw everything they had at the sky during the solar eclipse that swept across much of the United States on April 8, 2024. They deployed high-altitude aircraft, enlisted volunteers to launch weather balloons and snap bright halo-like images of the sun’s corona, and sent ham radio signals back and forth through the atmosphere.
The goal was to get closer to unraveling some of the enduring mysteries of the sun, including why the corona, the sun’s outer atmosphere, is so much hotter than the surface (SN: 5/1/24).
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