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All Stories by Katherine Kornei
Seismic rumblings picked up by NASA’s InSight lander hint at molten rock moving deep below the planet’s fractured surface.
Alternatively, this unseen wanderer might be a hefty neutron star. Whatever it is, its gravity caused starlight to be warped — and that gave it away.
This magnitude 5 quake is offering scientists a peek at what’s going on beneath the Martian surface.
Of 99 coastal cities studied, nearly one-third are sinking. This leaves coastal communities increasingly vulnerable to rising seas.