Earth is far from a static place. That's true in the present, but it's even more apparent when you look to the past, as Earth ...
On Aug. 24, 2006, the International Astronomical Union voted to strictly define a planet, which ultimately downgraded Pluto from the ninth planet from the sun to a dwarf planet — causing controversy ...
The Smithsonian partners with NASA to present the Earth Information Center, a larger-than-life display that visualizes interconnected changes on the planet Jack Tamisiea The museum's newest exhibition ...
Venus is often called Earth's "sister planet" because of their similarities in size, mass, and composition. Both are rocky ...
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