Wikipedia:
2009 in science
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The year 2009 in science involves some significant events.
Events
Scientific events scheduled to occur in the year 2009 include:
- January 26 Annular solar eclipse.
- February 1 - The International Cospas-Sarsat Satellite System is scheduled to stop monitoring for 121.5 MHz and 243 MHz (Class B) distress signals from EPIRBs and other emergency beacons.
- February 13 - A celebration is expected as the Unix time number reaches 1234567890 seconds at 23:31:30 UTC.
- February 17 - Analog television broadcasts are scheduled to end in the United States, requiring all stations to send their signals digitally.
- March 3 - Square root day, the first one in over five years.
- April 11 - Neptune will return to the same degree and minute as when it was discovered, 163 years previously (September 23, 1846).
- May 25 - Conjunction between Jupiter and Neptune, Jupiter 24' south. First conjunction of triple conjunction Jupiter/Neptune.
- July 13 - Conjunction between Jupiter and Neptune, Jupiter 37' south. Second conjunction of triple conjunction Jupiter/Neptune.
- July 20 - 40th anniversary of the U.S. Moon Landing.
- July 22 - Total solar eclipse (Longest lasting total eclipse of the 21st century).
- September 29 - NASA's MESSENGER spacecraft makes its final flyby of Mercury, decreasing velocity enough for an orbital capture in 2011.
- December 20 - Conjunction between Jupiter and Neptune, Jupiter 34' south. Third conjunction of triple conjunction Jupiter/Neptune.
- The Space Shuttle Discovery will be retired from service.
- Possible start of unmanned test flights of the Ares I rocket and the new Crew Exploration Vehicle.
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