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China’s second moon probe Chang’e-2 to launch this weekend

September 30, 2010

From Space.com:

On Thursday, workers will begin fueling the Long March rocket that will blast the unmanned Chang’e-2 probe into space from Xichang Satellite Launch Center in Sichuan province, Xinhua reported. Launch will occur “at an appropriate time” between Friday — China’s National Day, when the country marks 61 years of Communist rule — and Sunday (Oct. 3).

 

Chang'e-2 lunar probe

 

Chang’e-2 is the second step in China’s three-phase Chang’e moon exploration program, which is named after China’s mythical moon goddess. Chang’e-2 will test out technology and collect data on possible landing sites for the Chang’e-3 spacecraft, which is scheduled to land on the moon in 2013. According to the state news agency, Chang’e-2 should arrive at lunar orbit about five days after launch. It will eventually swoop down to an orbit just nine miles (15 km) above the lunar surface to take high-resolution pictures of landing areas for Chang’e-3. After snapping the photos, Chang’e-2 will retreat to an altitude of about 62 miles (100 km) to conduct a study of the lunar surface and dirt.

The Chang’e-1 probe  launched in October 2007 and conducted a 16-month moon observation mission, after which it crash-landed on the lunar surface by design, in March 2009.

 

The launch of Long March 3B Rocket, Xichang Sa...

Image via Wikipedia:Long March 3B Rocket launch

 

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Posted in Astronomy, China, Engineering, Space, Technology | 1 Comment »

“Gliese 581g”: Habitable planet found?

September 30, 2010
Habitable zone-he

Image via Wikipedia: Habitable zone

From just a week ago “Two researchers have used the pace of past exoplanet finds to predict that the first habitable Earth-like planet could turn up in May 2011″.

A pessimistic forecast perhaps because astronomers may have found the most Earth-like alien planet to date, and it’s located only a short distance away, cosmically speaking. The team says that the planet’s proximity to its sun, coupled with the ease with which it was detected, suggests that the galaxy could be teeming with habitable worlds.

Science reports that:

Gliese 581g looks like a game-changer. Detected from the minuscule amount of gravitational influence it exerts on its star, the planet lives a mere 20 light-years away in the constellation Libra. Gliese 581g is the sixth world discovered around its sun—and the fourth most distant. Yet its orbit brings it closer to its parent star than Mercury is to our sun. Still, it’s squarely within the habitable zone, because the planet’s star, which is a type known as a red dwarf, contains only about 30% of the sun’s mass and shines with only about 1% of its brightness, the researchers will report in an upcoming issue of the Astrophysical Journal.

Read the article:

http://news.sciencemag.org/sciencenow/2010/09/astronomers-find-most-earth-like.html

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Posted in Astronomy, Science, Space | 1 Comment »

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