http://www.msnbc.msn.com/id/9331322

Japanese probe pulls up alongside asteroid

Two-year trip to climax in November with touch-and-go landing

Sept. 14, 2005


TOKYO - Bringing Japan's most complex space mission near its climax, a
probe is within 12 miles of an asteroid almost 180 million miles from
Earth in an unprecedented rendezvous designed to retrieve rocks from its
surface.

The Hayabusa probe, launched in May 2003, will hover around the asteroid
for about three months before making its brief landing to recover the
samples in early November. The asteroid is located between Earth and Mars.

"The mission is going very smoothly and proceeding as planned," Atsushi
Wako, a spokesman for JAXA, Japan's space agency, said Tuesday.

The asteroid, informally named Itokawa, after Hideo Itokawa, the father of
rocket science in Japan, is only around 2,300 feet long and 1,000 feet
wide, and has a gravitational pull one-one-hundred-thousandth of Earth's.

Though it took two years to get there, the asteroid is among the closest
neighbors to Earth other than the moon.

The probe's first mission will be to survey the asteroid with cameras and
infrared imaging gear. It has already begun sending back images, Wako said.

When Hayabusa moves in for the rendezvous, expected to be over in a matter
of seconds, it will pull up close enough to fire a small bullet into the
asteroid and collect the ejected fragments in a funnel-like device. It
won't be coming back with much - the amount of material planners hope to
capture wouldn't even fill a teaspoon.

JAXA officials say Hayabusa would be the world's first two-way trip to an
asteroid. A NASA probe collected data for two weeks from the surface of
the Manhattan-sized asteroid Eros in 2001, but it did not return with
physical samples.

Despite a glitch with one of Hayabusa's three gyroscopes, the mission has
been largely mishap-free. Wako said the probe is set to return to Earth
and land in the Australian outback in June 2007.

The success of the mission so far is a major coup for JAXA.

Japan was the fourth country to launch a satellite, in 1972, and this
spring announced a major project to send its first astronauts into space
and set up a base on the moon by 2025.

JAXA already has an unmanned moon survey mission planned. Its SELENE probe
- originally scheduled for launch in 2005, but since delayed - is designed
to orbit the moon, releasing two small satellites that will measure the
moon's magnetic and gravitational field and conduct other tests for clues
about the moon's origin.

It had to abandon a mission to Mars two years ago, however, after the
probe moved off course. The explosion of a domestically designed H-2A
rocket, the centerpiece of the country's space program, in November 2003
also marked a major setback for JAXA's plans. Controllers had to detonate
that rocket and its payload of two spy satellites after a booster failed
to detach.

The failed launch came just one month after China successfully put its
first astronaut into orbit. Beijing has since announced it is aiming for
the moon.

Japan returned to space in February with a successful H-2A launch, after
15 months on the ground.


Correction: An earlier version of this story incorrectly stated that no
samples had been brought back to Earth from a space mission since the
Apollo missions in the 1970s.



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