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Loggerhead sea turtle hatchlings are packed into containers at the Gumbo Limbo Nature Center before being taken to a U.S. Coast Guard vessel for release in Boca Raton, Fla. Wilfredo Lee/AP hide caption

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Wilfredo Lee/AP

Tiny minerals in the clay of this jar hold information about the strength of the Earth's magnetic field at the time the jar was fired, thousands of years ago. Image courtesy of Oded Lipschits hide caption

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Image courtesy of Oded Lipschits
Fanatic Studio/Collection Mix: Sub/Getty Images

Zap! Magnet Study Offers Fresh Insights Into How Memory Works

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This illustration show's NASA's Juno mission approaching Jupiter. Juno used distant stars to chart its course across the void. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

'Star Trackers' Help Juno Find Its Way

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A single plume of plasma, many times taller than the diameter of Earth, rose up from the Sun, twisted and spun around, while spewing streams of particles for two days — Aug. 17-19, 2015 — before breaking apart. NASA/GSFC/Solar Dynamics Observatory hide caption

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NASA/GSFC/Solar Dynamics Observatory