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This Day in History
On August 3, 1958, the U.S. nuclear submarine Nautilus accomplishes the first undersea voyage to the geographic North Pole. The world’s first nuclear submarine,…
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Catch up on new discoveries, explore important anniversaries and get the history behind today's headlines.
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On the 25th anniversary of the launch of Buran, look back at the one and only flight of the Soviet version of the space shuttle.
Using data from the Kepler space telescope, astronomers speculate that our galaxy holds billions of Earth-like planets.
A member of the Mercury 7, Carpenter made his historic flight in May 1962.
The cloud map was produced using data from the Kepler and Spitzer space telescopes.
Voyager 1 is the first man-made object to reach interstellar space, NASA has confirmed.
As we honor the historic heights reached by both Valentina Tereshkova and Sally Ride, here’s a look back at 50 years of women in space.
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.