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Monday, November 28, 2011

Federer beats Ferrer in semis at ATP finals

Roger Federer of Switzerland serves to David Ferrer of Spain during their semifinal tennis match at the ATP World Tour Finals, at the O2 arena in London, Saturday, Nov. 26, 2011. (AP Photo/Alastair Grant)

Roger Federer of Switzerland plays a return to David Ferrer of Spain during their semifinal tennis match at the ATP World Tour Finals, at the O2 arena in London, Saturday, Nov. 26, 2011. (AP Photo/Alastair Grant)

Roger Federer of Switzerland serves to David Ferrer of Spain during their semifinal tennis match at the ATP World Tour Finals, at the O2 arena in London, Saturday, Nov. 26, 2011. (AP Photo/Sang Tan)

David Ferrer of Spain plays a return to Roger Federer of Switzerland during their semifinal tennis match at the ATP World Tour Finals, at the O2 arena in London, Saturday, Nov. 26, 2011. (AP Photo/Alastair Grant)

LONDON (AP) ? Roger Federer reached his 100th career final, beating David Ferrer 7-5, 6-3 Saturday in the semifinals of the season-ending ATP World Tour Finals and gaining the year-end No. 3 ranking.

In a tournament where his biggest rivals complained of fatigue after failing to make it out of the group stage, Federer showed no signs of slowing down. The 30-year-old Swiss extended his unbeaten streak to 16 matches after winning titles in Basel and Paris before coming to London.

Federer became just the fifth player to reach 100 finals in the open era. He will be looking for his 70th title Sunday when he faces the winner of the second semifinal between Jo-Wilfried Tsonga and Tomas Berdych.

The victory over Ferrer sent Federer past Andy Murray in the year-end rankings, trailing No. 1 Novak Djokovic and Rafael Nadal.

Djokovic and Nadal were eliminated after losing two of their round-robin matches this week, both saying their minds and bodies weren't up for top-level tennis following another grueling season. Murray pulled out injured following his opening loss to Ferrer on Monday.

But Federer has played some of his best tennis of the year in London, and while he did not look as sharp against Ferrer as he did in his three group-stage victories, he never faced a break point. He broke the fifth-seeded Spaniard twice in the second set and converted his second match point with a forehand winner.

Ferrer came within two points of the first set six times in Federer's service game when the Spaniard led 5-4. But he never earned a break point in a game that went to deuce five times, and Federer finally held when Ferrer sent a backhand passing shot wide. That marked a turning point, with Federer winning the next four games as well to take control.

Federer is looking for a record sixth title at the year-end event for the world's top eight players. Ivan Lendl and Pete Sampras have five. With his 806th victory, Federer moved into a share of sixth place on the career list with Stefan Edberg.

The other four players to have reached 100 finals are Jimmy Connors (163), Lendl (146), John McEnroe (108) and Guillermo Vilas (104).

In doubles, Max Mirnyi of Belarus and Daniel Nestor of Canada reached the final by beating American twins Bob and Mike Bryan 7-6 (6), 6-4. In the second semifinal, Mahesh Bhupathi and Leander Paes of India were set to take on Mariusz Fyrstenberg and Marcin Matkowski of Poland.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/347875155d53465d95cec892aeb06419/Article_2011-11-26-TEN-ATP-Finals/id-08b4770bdf4d40dda3338434fed7fdd0

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NCAA Game Summary - Michigan State at Eastern Michigan

Written by

The Sports Network

Ypsilanti, MI (Sports Network) - Draymond Green netted 14 points and grabbed 13 rebounds, powering the Michigan State Spartans to a 72-40 rout of the Eastern Michigan Eagles in non-conference action at the Convocation Center.

Green received offensive support from Adreian Payne and Keith Appling, who tallied 12 and 11 points, respectively, for Michigan State (4-2), which posted its fourth straight win.

J.R. Sims led Eastern Michigan (4-2) with 14 points, but the Eagles finished with a season-low 40 points in the loss.

Michigan State jumped all over EMU early. going on a 14-4 run and taking a 25-13 lead at the intermission. The Spartans shot 44 percent from the floor in the first 20 minutes, while limiting the home team to a mere 20 percent clip (6-of-30).

MSU turned up the heat after the break, shooting 51.5 percent from the floor en route to the 32-point win.

Michigan State dominated the action down low, outrebounding the Eagles, 49-29 and outscoring Eastern Michigan in the paint, 46-16. The Spartans shot just 16.7 percent from behind the arc (2-of-12), but the Eagles were even worse 13.6 percent (3-of-22) from three-point range.

GAME NOTES:

The Sports Network

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Source: http://feedproxy.google.com/~r/wmaz/ncaabasketball/~3/XcC_dPqDaKM/NCAA-Game-Summary---Michigan-State-at-Eastern-Michigan

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Sunday, November 27, 2011

Mars life? New rover may uncover clues

NASA is getting set to launch its next Mars rover this week, a 1-ton robotic beast that will take planetary exploration to the next level.

The car-size Curiosity rover is the centerpiece of NASA's $2.5 billion Mars Science Laboratory (MSL) mission, slated to blast off Saturday from Cape Canaveral Air Force Station in Florida. Curiosity's main goal is to assess whether the Red Planet is, or ever was, capable of supporting microbial life.

The rover will employ 10 different science instruments to help it answer this question once it touches down on the Red Planet in August 2012. Here's a brief rundown of these instruments (and one more on the rover's heat shield):

Mast Camera (MastCam)

The MastCam is Curiosity's workhorse imaging tool. It will capture high-resolution color pictures and video of the Martian landscape, which scientists will study and laypeople will gawk at.

MastCam consists of two camera systems mounted on a mast that rises above Curiosity's main body, so the instrument will have a good view of the Red Planet environment as the rover chugs through it. MastCam images will also help the mission team drive and operate Curiosity. (Photos of NASA's Curiosity Rover)

Mars Hand Lens Imager (MAHLI)

MAHLI will function much like a high-powered magnifying glass, allowing Earthbound scientists to get up-close looks at Martian rocks and soil. The instrument will take color pictures of features as tiny as 12.5 microns ? smaller than the width of a human hair.

MAHLI sits on the end of Curiosity's five-jointed, 7-foot (2.1-meter) robotic arm, which is itself a marvel of engineering. So mission scientists will be able to point their high-tech hand lens pretty much wherever they want.

Mars Descent Imager (MARDI)

MARDI, a small camera located on Curiosity's main body, will record video of the rover's descent to the Martian surface (which will be accomplished with the help of a hovering, rocket-powered sky crane). (Video: Curiosity's Peculiar Landing)

MARDI will click on a mile or two above the ground, as soon as Curiosity jettisons its heat shield. The instrument will then take video at five frames per second until the rover touches down. The footage will help the MSL team plan Curiosity's Red Planet rovings, and it should also provide information about the geological context of the landing site, the 100-mile-wide (160-km) Gale Crater.

Sample Analysis at Mars (SAM)

SAM is the heart of Curiosity; at 83 pounds (38 kilograms), it makes up about half of the rover's science payload.

SAM is actually a suite of three separate instruments ? a mass spectrometer, a gas chromatograph and a laser spectrometer. These instruments will search for carbon-containing compounds, the building blocks of life as we know it. They will also look for other elements associated with life on Earth, such as hydrogen, oxygen and nitrogen.

The SAM instrument suite is located in Curiosity's main body. The rover's robotic arm will drop samples into SAM via an inlet on the rover's exterior. Some of these samples will come from the interior of rocks, powder bored out by a 2-inch (5-centimeter) drill situated at the end of the arm.

None of Curiosity's predecessors could get deep into Martian rocks, so scientists are excited about the drill.

"For a geologist that studies rocks, there's nothing better than getting inside," said MSL deputy project scientist Joy Crisp, of NASA's Jet Propulsion Laboratory in Pasadena, Calif.

Chemistry and Mineralogy (CheMin)

CheMin will identify different types of minerals on Mars and quantify their abundance, which will help scientists better understand past environmental conditions on the Red Planet.

Like SAM, CheMin has an inlet on Curiosity's exterior to accept samples delivered by the rover's robotic arm. The instrument will shine a fine X-ray beam through the sample, identifying minerals' crystalline structures based on how the X-rays diffract.

"This is like magic to us," Crisp told Space.com. X-ray diffraction is a leading diagnostic technique for Earthbound geologists, she explained, but it hasn't made it to Mars yet. So CheMin should help Curiosity provide more definitive mineral characterizations than previous Mars rovers such as Spirit and Opportunity have been able to achieve.

Chemistry and Camera (ChemCam)

For sheer coolness, it's tough to beat ChemCam. This instrument will fire a laser at Martian rocks from up to 30 feet (9 meters) away and analyze the composition of the vaporized bits.

ChemCam will thus enable Curiosity to study rocks that are out of reach of its flexible robotic arm. It will also help the mission team determine from afar whether or not they want to send the rover over to investigate a particular landform.

ChemCam is composed of several different parts. The laser sits on Curiosity's mast, along with a camera and a small telescope. Three spectrographs sit in the rover's body, connected to the mast components by fiber optics. The spectrographs will analyze the light emitted by excited electrons in the vaporized rock samples.

Alpha Particle X-Ray Spectrometer (APXS)

APXS, which sits at the end of Curiosity's arm, will measure the abundances of various chemical elements in Martian rocks and dirt.

Curiosity will place the instrument in contact with samples of interest, and APXS will shoot out X-rays and helium nuclei. This barrage will knock electrons in the sample out of their orbits, causing a release of X-rays. Scientists will be able to identify elements based on the characteristic energies of these emitted X-rays.

Spirit and Opportunity were outfitted with a previous version of APXS and used the instrument to help elucidate the prominent role water has played in shaping the Martian landscape. (Latest Mars Photos From Spirit and Opportunity)

Dynamic Albedo of Neutrons (DAN)

DAN, located near the back of Curiosity's main body, will help the rover search for ice and water-logged minerals beneath the Martian surface.

The instrument will fire beams of neutrons at the ground, then note the speed at which these particles travel when they bounce back. Hydrogen atoms tend to slow neutrons down, so an abundance of sluggish neutrons would signal underground water or ice.

DAN should be able to map out water concentrations as low as 0.1 percent at depths up to 6 feet (2 m).

Radiation Assessment Detector (RAD)

The toaster-size RAD is designed specifically to help prepare for future human exploration of Mars. The instrument will measure and identify high-energy radiation of all types on the Red Planet, from fast-moving protons to gamma rays.

RAD's observations will allow scientists to determine just how much radiation an astronaut would be exposed to on Mars. This information could also help researchers understand how much of a hurdle Mars' radiation environment might have posed to the origin and evolution of life on the Red Planet.

Rover Environmental Monitoring Station (REMS)

This tool, which sits partway up Curiosity's mast, is a Martian weather station. REMS will measure atmospheric pressure, humidity, wind speed and direction, air temperature, ground temperature and ultraviolet radiation.

All of this information will be integrated into daily and seasonal reports, allowing scientists to get a detailed look at the Martian environment.

MSL Entry, Descent and Landing Instrumentation (MEDLI)

MEDLI isn't one of Curiosity's 10 instruments, since it's built into the heat shield that will protect the rover on its descent through the Martian atmosphere. But it's worth a few words here.

MEDLI will measure the temperatures and pressures the heat shield experiences as the MSL spacecraft streaks through the Martian sky. This information will tell engineers how well the heat shield, and their models of the spacecraft's trajectory, performed.

Researchers will use MEDLI data to improve designs for future Mars-bound spacecraft.

You can follow Space.com senior writer Mike Wall on Twitter: @michaeldwall. Follow Space.com for the latest in space science and exploration news on Twitter @Spacedotcom and on Facebook.