- Chemist Solves Lincoln Funeral Train Mystery
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- Hanging Gardens Existed, but not in Babylon
- One World Trade Center Reaches Historic Heights
- 10 Things You May Not Know About Abraham Lincoln
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- 5 Things You May Not Know About Lincoln, Slavery and Emancipation
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This Day in History
Brooklyn Bridge opens, 1883
After 14 years and 27 deaths while being constructed, the Brooklyn Bridge over the East River is opened, connecting the great cities of New York and Brooklyn fo…
A rare binary star system has put Albert Einstein’s general theory of relativity to its most challenging test to date.
NASA announces the discovery of seven new distant planets, three of which may be able to support life.
An analysis of rock dust by the Curiosity rover suggests that life could once have thrived on the Red Planet.
Last Friday’s meteor blast recalled the memory of an even more powerful space rock explosion over Siberia: the mysterious 1908 Tunguska event.
Three new studies lend support to the theory that Earth’s satellite emerged from a fiery planetary smashup.
Over 50 years ago, Joe Kittinger rode a balloon 102,800 feet up to the edge of space. Then he jumped out.
On the 55th anniversary of Sputnik’s launch, explore seven of the Soviet Union’s firsts in the history of space exploration.
NASA’s Curiosity rover has detected powerful evidence for fast-flowing tributaries on the Red Planet in the form of ancient streambeds
On the 35th anniversary of the launch of space probe Voyager 1, explore six cool facts about the farthest manmade object from Earth.
Explore the incredible career of astronaut Neil Armstrong, who died Saturday at 82.
As NASA’s rover Curiosity continues the quest to find life on Mars, explore five key events that piqued the public interest in the Red Planet.
Take a look back at the incredible career of astronaut Sally Ride, who died Monday at age 61.
On the 50th anniversary of the first live transatlantic television feed beamed by Telstar, revisit the historic broadcast of July 23, 1962.