Oct. 7, 2010: To mark an unprecedented flurry of exploration which is about to begin, NASA announced today that the coming year will be “The Year of the Solar System” (YSS).

“During YSS, we’ll see triple the [usual] number of launches, flybys and orbital insertions,” says Jim Green, Director of Planetary Science at NASA headquarters. “There hasn’t been anything quite like it in the history of the Space Age.

Naturally, it’s a Martian year.

“These events will unfold over the next 23 months, the length of a year on the Red Planet” explains Green. “History will remember the period Oct. 2010 through Aug. 2012 as a golden age of planetary exploration.”

NASA's Year of the Solar System site is open for business.

Educators are invited to go along for the ride. During each month of YSS, NASA’s Year of the Solar System web site (http://solarsystem.nasa.gov/yss) will highlight different missions, planets, and night sky events, weaving together activities, resources, and ideas that teachers can use to build enthusiasm among their students.

The action begins near the end of October 2010 with a visit to Comet Hartley 2. On Oct. 20th, Hartley 2 will have a close encounter with Earth; only 11 million miles away, it will be faintly visible to the naked eye and become a splendid target for backyard telescopes. Amateur astronomers can watch the comet as NASA’s Deep Impact/EPOXI spacecraft dives into its vast green atmosphere and plunges toward the icy core. On Nov. 4th EPOXI will fly a mere 435 miles from Hartley’s nucleus, mapping the surface and studying outbursts of gas at close-range.

Later in November, NASA astrobiologists will launch O/OREOS, a shoebox-sized satellite designed to test the durability of life in space. Short for “Organism/ORganic Exposure to Orbital Stresses,” O/OREOS will expose a collection of organic molecules and microbes to solar and cosmic radiation. Could space be a natural habitat for these “micronauts?” O/OREOS may provide some answers. Bonus: The same rocket that delivers O/OREOS to space will carry an experimental solar sail. NanoSail-D will unfurl in Earth orbit and circle our planet for months. Occasionally, the sail will catch a sunbeam and redirect it harmlessly to the ground below where sky watchers can witness history’s first “solar sail flares.”

This spectacular color mosaic shows the eastern limb of Mercury as seen by MESSENGER as the spacecraft departed the planet following the mission's first Mercury flyby in January 2008. The colors of this image are not those that would be seen by the human eye but instead convey information about the distribution of different rock types on Mercury's surface. The different rock types result in subtle color variations across all of the 11 WAC narrow-band color filters. The Caloris basin, visible as a large bright yellow circular area in this image due to its infill of volcanic plains, dominates the northern region. A similar image was published in Science magazine in July 2008, but it only covered the northern half of the region shown here. To create this larger color mosaic, MESSENGER Science Team members had to also devise a method to deal with scattered light in the 11 different WAC filters. MESSENGER has obtained color imaging at this resolution only for the portions of Mercury seen on departure from Mercury flybys 1 and 2. As spectacular as this color image is, it is just a taste of what is yet to come. In 2011, MESSENGER will become the first spacecraft ever to orbit Mercury and begin a year-long observing campaign that includes imaging all of Mercury's surface in color at an average resolution of about 1 kilometer/pixel (0.6 miles/pixel), a resolution that is about a factor of three better than this already impressive image. Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Arizona State University/Carnegie Institution of Washington

On December 7, 2010, Japan’s Akatsuki (Venus Climate Orbiter) spacecraft grabs the spotlight when it enters orbit around Venus. The mission aims to understand how a planet so similar to Earth in size and orbit went so terribly wrong. Venus is bone-dry, shrouded by acid clouds, and beset by a case of global warming hot enough to melt lead. Instruments on Akatsuki will probe Venus from the top of its super-cloudy atmosphere all the way to the volcano-pocked surface below, providing the kind of detailed information researchers need for comparative planetary.

The action continues in 2011 as Stardust NExT encounters comet Tempel 1 (February 14), MESSENGER enters orbit around Mercury (March 18), and Dawn begins its approach to asteroid Vesta (May).

And that is exactly what Dawn will do in July 2011: insert itself into orbit for a full-year study of the second-most massive body in the asteroid belt. Although Vesta is not classified as a planet, it is a full-fledged alien world that is expected to mesmerize researchers as it reveals itself to Dawn’s cameras.

Next comes the launch of the Juno spacecraft to Jupiter (August), the launch of GRAIL to map the gravitational field of the Moon (September), and the launch of a roving science lab named “Curiosity” to Mars (November).

2012 opens with Mars rover Opportunity running the first-ever Martian marathon. The dogged rover is trundling toward the heart of Endeavour Crater, a city-sized impact basin almost two dozen miles from Opportunity’s original landing site.

Sometime in mid-2012, Opportunity will reach Endeavour’s lip and look over the edge deeper into the heart of Mars than any previous robotic explorer. The only thing more marvelous than the view will be the rover itself. Originally designed to travel no more than 0.6 miles, Opportunity’s rest stop at Endeavour will put it just miles away from finishing the kind of epic Greek run that athletes on Earth can only dream about.

Meanwhile, halfway across the solar system, Dawn will fire up its ion engines and prepare to leave Vesta. For the first time in space history, a spacecraft orbiting one alien world will break orbit and take off for another. Dawn’s next target is dwarf planet Ceres, nearly spherical, rich in water ice, and totally unexplored.

The Year of the Solar System concludes in August 2012 when Curiosity lands on Mars. The roving nuclear-powered science lab will take off across the red sands sniffing the air for methane (a possible sign of life) and sampling rocks and soil for organic molecules. Curiosity’s advanced sensors and unprecedented mobility are expected to open a new chapter in exploration of the Red Planet.

More info: NASA

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