- Associated Press - Thursday, May 14, 2009

UPDATED:

CAPE CANAVERAL, Fla. (AP) — A pair of spacewalking astronauts successfully installed a new piano-sized camera in the Hubble Space Telescope on Thursday, the first step to making the observatory more powerful than ever.

The repair job — all the more dangerous because of the high, debris-ridden orbit — got off to a slow start.

John Grunsfeld and Andrew Feustel had trouble removing the old camera from the telescope because of a stubborn bolt. They fetched extra tools, but none seemed to work.


Finally, Mission Control urged the astronauts to use as much force as possible to free the bolt.

“OK, here we go,” Feustel said. “I think I’ve got it. It turned. It definitely turned.” And then: “Woo-hoo, it’s moving out!”

The effort put the astronauts a little behind schedule in their first spacewalk of shuttle Atlantis’ mission. In all, five high-risk spacewalks are planned to fix Hubble’s broken parts and plug in higher-tech science instruments.

Atlantis and its crew are traveling in an especially high orbit, 350 miles above Earth, that is littered with pieces of smashed satellites. A 4-inch piece of space junk passed within a couple miles of the shuttle Wednesday night, just hours after the shuttle grabbed Hubble. Even something that small could cause big damage.

For the first time, another shuttle is on standby in case it needs to rush to the rescue.

Once the sticky bolt was freed, Feustel pulled out the old camera, the size of a baby grand piano.

“This has been in there for 16 years, Drew,” said Grunsfeld.

“It didn’t want to come out,” Feustel replied.

The spacewalkers followed up with the installation of the replacement camera. “Let there be light,” Grunsfeld said as ground controllers checked the power hookups. Everything tested fine.

Also on their to-do list: replacing a computer data unit that broke down last fall, and hooking up a docking ring so a robotic craft can guide the telescope into the Pacific years from now.

The newly inserted wide-field and planetary camera — worth $132 million — will allow astronomers to peer deeper into the universe, to within 500 million to 600 million years of creation.

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