On the evening of May 22, 2011, an EF5 tornado (the highest on the scale used to estimate tornado intensity) carved a 22-mile path through Joplin, Missouri, killing 161 people, injuring more than ...
Observations from the European Space Agency's Mars Express orbiter have been used to create this animation of a butterfly crater on Mars. "A butterfly crater is created when a space rock collides with ...
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