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NASA Mars rover headed for August arrival at planet

This artist concept provided by NASA Tuesday Jan.102012 shows Curiosity rover cruising toward Mars. The spacecraft will adjust its flight

This artist concept provided by NASA on Tuesday Jan.10,2012 shows the Curiosity rover cruising toward Mars. The spacecraft will adjust its flight path several times as it heads for an August landing in a Martian crater. (AP Photo/NASA/JPL

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LOS ANGELES — A NASA spacecraft is aiming for an August landing on Mars.

The one-ton rover nicknamed Curiosity is poised to fire its thrusters Wednesday to put itself on course.

The maneuver is expected to last nearly three hours and will be tracked by deep space antennas.

Engineers have several more chances over the next several months to fine-tune Curiosity’s flight path before touchdown inside a crater near the Martian equator.

The goal of the $2.5 billion mission is to see whether Mars, now cold and barren, might have been hospitable for microbial life.

AP



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