bolide

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Albert Einstein in Washington, D.C. c. 1921-1923. Physicist

The Solar Eclipse That Made Albert Einstein a Science Celebrity

Artist interpretation of a Space meteoroid impact. Meteor impact. Asteroid, End of the world, danger, destruction, dinosaur extinct, Judgement Day, Planet Earth, Doomsday Predictions, comet

10 Failed Doomsday Predictions

earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.

The 6 Deadliest Earthquakes Since 1950

Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

Why Do Some Cicadas Appear Only Every 17 Years?

Stylish light blue jeans on wooden background, closeup of inset pocket

Why Do Jeans Have That Tiny Pocket?

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

Black widow spider

9 of the World’s Deadliest Spiders

bolide

astronomy

Learn about this topic in these articles:

K–T extinction

In K–T extinction
…was the result of multiple bolide impacts. In addition, tektites (fractured sand grains characteristic of meteorite impacts) and the rare-earth element iridium, which is common only deep within Earth’s mantle and in extraterrestrial rocks, have been found in deposits associated with the extinction. There is also evidence for some spectacular…
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Permian extinction

In Permian extinction: Other potential causes
…was the result of a bolide (meteorite or comet) impact that occurred near the end of the Permian Period; however, that hypothesis is the subject of much debate.
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