Key Facts Artist’s cutaway illustration of Mars showing debris from ancient impacts (bright fragments) scattered through the mantle. Seismic waves from a meteoroid impact (left) travel through this lumpy interior before being detected by NASA’s InSight lander (right) on the surface watchers.news watchers.news. Probing Mars’ Interior: InSight Mission Background NASA’s InSight (Interior Exploration using Seismic…
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Jupiter is the Solar System’s largest planet, about 318 Earth masses, with a rotation period of roughly 9.9 hours per day. It is composed mainly of hydrogen and helium, with a metallic hydrogen layer that powers a strong magnetic field via a dynamo. The Great Red Spot is a storm at least 300–350 years old,…
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