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Solar System Exploration
Looking Back, Looking Forward: Celebrate 400 years of exploration with a 2008 science recap and a first look at the 2009 International Year of Astronomy. Best of NASA Science 2008 NASA International Year of Astronomy Homepage Solar System Exploration 2009 IYA Homepage IYA: The Solar System and the Universe - Yours to Explore Feature Archive
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Looking Back, Looking Forward: Celebrate 400 years of exploration with a 2008 science recap and a first look at the 2009 International Year of Astronomy.
NASA Science Summaries news Spotlights calendar
Galileoscope: Celebrating Telescopes and Space Probes
Galileoscope: Celebrating Telescopes and Space Probes
Galileo would be amazed to learn how our view of our place in the universe has changed dramatically in the past 400 years. Read More
More Science Summaries More Science Summaries
Multimedia Spotlight
Multimedia Spotlight: Titan Explorer
Explore Saturn's Moon Titan
Mysterious Titan begins to appear more familiar as the Cassini spacecraft explores the once hidden surface of this Earth-like moon.
Launch Titan Explorer Launch
More Interactives More Interactives
Methane Means Red Planet is not a Dead Planet
01.15.09  Methane Means Red Planet is not a Dead Planet
The first definitive detection of methane in Mars' atmoshere indicates planet is still alive. Read More
01.14.09  Cool Rocket Power
Prototype cryogenic engine designed to land astronauts on the Moon completes third round of testing. Read More
01.11.09  Pressure Performance
Superpressure balloon prototype may enable new era of high-altitude research. Read More
01.09.09  Comet Approaching
Comet Lulin is expected to brighten to naked-eye visibility next month. Read More
01.09.09  NASA Selects Lunar Research Teams
NASA has selected seven academic and research teams for its Lunar Science Institute. Read More
More News More News
Sky Stories
Education: Sky Stories
The 2009 International Year of Astronomy is all about looking up. Share your stargazing stories. Read More
Videos: What's Up for January
This month Venus is the centerpiece of the first month of the 2009 International Year of Astronomy. Read More
Missions: Launch Schedule
Check the status of upcoming NASA launches in 2009. Read More
Education: In the Footsteps of Galileo
Recreate Galileo's earthshaking 17th Century observations of Jupiter's moons. Read More
Multimedia: Flashbacks
Explore the technological breakthroughs that revolutionized the study of asteroids with this interactive timeline from the Dawn mission team. Read More
01.19.09
The role of Astronomy in Society and Culture
UNESCO HQ, Paris, France Read More
01.20.09
40th Anniversary, Unnamed (7K-L1/13L): Launch  Read More
01.20.09
40th Anniversary, Unnamed (7K-L1/13L): End of Lunar Mission  Read More
01.24.09 (9:05 PM PST)
5th Anniversary, Opportunity: Mars Landing  Read More
01.26.09
Solar Eclipse
Solar eclipse visible in parts of South America, Australia and Antarctica. Read More
01.26.09 (07:55 UT)
New Moon
Moon's unilluminated side facing Earth. Read More
01.30.09 (15:49:09 UT)
45th Anniversary, Ranger 6: Launch  Read More
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