NASA scientists studying the origin of life have reproduced uracil, a key component of our hereditary material, in the laboratory.
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Science Mission Directorate
NASA uses orbiting observers and robotic landers to investigate the planets, moons, comets, and asteroids of our Solar System.
Latest Features
NASA Reproduces a Building Block of Life in Laboratory
Successful Flight Through Enceladus Plume
Cassini has started sending data back from its Nov. 2 flyby of Saturn's moon Enceladus.
Robot Armada Might Scale New Worlds
An armada of robots may one day fly above the mountain tops of Saturn’s moon Titan, cross its vast dunes and sail in its liquid lakes.
More Features
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A Long Night Falls Over Saturn's Rings
Once approximately every 15 years, light from the sun hits the ring particles at very low angles, giving us a three-dimensional view of the rings.
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Free Spirit: Tests Prepare to Extract Rover
Engineers using test rovers on Earth to prepare for extracting the sand-trapped Spirit rover on Mars have added a new challenge to their preparations.
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Galileo's Jupiter Journey Began Two Decades Ago
NASA's Galileo spacecraft began what would become a 14-year odyssey of exploration 20 years ago this Sunday, Oct. 18.
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Cassini Data Help Redraw Shape of Solar System
Images from the Ion and Neutral Camera on NASA's Cassini spacecraft suggest that the heliosphere, the region of the sun's influence, may not have the comet-like shape predicted by existing models.
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NASA Refines Asteroid Apophis' Path Toward Earth
Using updated information, NASA scientists have recalculated the path of a large asteroid. The refined path indicates a significantly reduced likelihood of a hazardous encounter with Earth in 2036.
News Releases
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MESSENGER Spacecraft Reveals More Hidden Territory on Mercury
11.03.09 - A NASA spacecraft's third and final flyby of the planet Mercury gives scientists new scientific findings about this relatively unknown planet.
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NASA to Release New Images and Findings from Third Mercury Flyby
10.29.09 - NASA will host a media teleconference at 1 p.m. EST on Tuesday, Nov. 3, to announce scientific findings and release new images from the third and final flyby of Mercury by MESSENGER.
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Fermi Telescope Caps its First Year with a Glimpse of Space-Time
10.28.09 - During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity.
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NASA's Fermi Telescope Celebrates First Year of Gamma-Ray Science
10.27.09 - will hold a news teleconference at 2 p.m. EDT on Wednesday, Oct. 28, to discuss the first-year science results from the Fermi Gamma-ray Space Telescope.
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Podcasts
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NASACast: Solar System
Audio and Video podcasts on NASA missions exploring our solar system.
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NASACast: What's Up?
NASA's monthly guide to watching the night sky.
Media Resources
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Remarks by NASA Administrator Charles F. Bolden Jr. at the 2009 Combined Federal Campaign Kickoff and Awards Ceremony
10.22.09 - CFC provides a wonderful opportunity that allows all us as Federal employees show an act of love and compassion as we seek to help our children, neighbors and even fellow NASA employees.
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Remarks by NASA Administrator Charles F. Bolden Jr. at the Wernher Von Braun Memorial Symposium Dinner
10.21.09 - Whatever direction NASA takes, technology and innovation will be keys to success.
› View PDF (40 Kb PDF)