Planetary anatomy
ILLUSTRATION: C. BICKEL/SCIENCE; DATA: INSIGHT MARS SEIS DATA SERVICE (2019)
Exploding stars may have assaulted ancient Earth
NASA; ESA; J. Hester and A. Loll/Arizona State University
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Podcast: Blood tests for Alzheimer’s disease, and what earthquakes on Mars reveal about the Red Planet’s core
On this week’s show: How blood tests for Alzheimer’s disease can help with treatments, and what seismic events detected by NASA’s InSight mission reveal about Mars’s internal structure
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