REx mission has an historic opportunity to closely observe the asteroid Apophis and improve our ability to defend against ...
Before arriving at the moon, the small satellite mission will use the gravity of the sun, Earth, and moon over several months ...
Bouncing back from under the weight of Ice Age glaciers which have long since vanished, the Nordic region land mass is slowly ...
Located 3,000 miles below the Earth's surface, the inner core is anchored by gravity within the molten liquid outer core. Until now the inner core was widely thought of as a solid sphere.
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