NASAs Kepler mission to search for Earth-like planets

March 6th, 2009 - 3:01 pm ICT by ANI  

Washington, March 6 (ANI): NASAs Kepler mission is all set to take off on March 6 from Pad 17-B at Cape Canaveral Air Force Station in Florida, in a mission that would to seek other Earth-like planets.

Kepler is designed to find the first Earth-size planets orbiting stars in habitable zones - regions where water could pool on the surface of the planets.

Liquid water is believed to be essential for the formation of life.

This mission attempts to answer a question that is as old as time itself — are other planets like ours out there? said Ed Weiler, associate administrator for NASAs Science Mission Directorate at NASA Headquarters in Washington.

Its not just a science question its a basic human question, he said.

After the clock ticks down to liftoff, the Delta IIs first-stage main engine and six strap-on solid rocket boosters will ignite.

Three remaining boosters will ignite 65.5 seconds later, and the first-stage main engine will continue to burn for 4.5 minutes.

The second stage will then ignite, carrying Kepler into a circular orbit about 185 kilometers (115 miles) above Earth less than 10 minutes after launch. After coasting for 43 minutes, the second-stage engine will fire again, followed by second-stage shutdown and separation.

The third stage will then burn for five minutes.

Sixty-two minutes after launch, Kepler will have separated entirely from its rocket and will be in its final Earth-trailing orbit around the Sun, an orbit similar to that of NASAs Spitzer Space Telescope.

We are very excited to see this magnificent spacecraft come to life when it reaches space, said James Fanson, Kepler project manager at NASAs Jet Propulsion Laboratory, Pasadena, California.

After a commissioning period lasting about two months, Kepler will begin its job of staring at more than 100,000 stars for three-and-one-half years, looking for planets.

Its isolated perch behind Earth will give the telescope an unobstructed view of a single, very large patch of sky near the Cygnus and Lyra constellations.

We will monitor a wide range of stars; from small cool ones, where planets must circle closely to stay warm, to stars bigger and hotter than the Sun, where planets must stay well clear to avoid being roasted, said William Borucki, science principal investigator for the mission at NASAs Ames Research Center at Moffett Field, California.

Everything about the mission is optimized to find Earth-size planets with the potential for life, to help us answer the question - are Earths bountiful or is our planet unique? he added. (ANI)

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