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Spacewalking Astronauts Replace Blurry Camera on Robot Arm

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This still image provided by NASA shows astronaut Joe Acaba during a spacewalk at the International Space Station on Oct. 20, 2017.
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Astronauts went spacewalking Friday to provide some necessary focus to the International Space Station’s robot arm.

The main job for commander Randy Bresnik and teacher-turned-astronaut Joe Acaba was to replace a blurry camera on the new robotic hand that was installed during a spacewalk two weeks ago. The two men were supposed to go spacewalking earlier this week, but NASA needed extra time to rustle up the repair plan.

Sharp focus is essential in order for the space station’s robot hand to capture an arriving supply ship. The next delivery is a few weeks away, prompting the quick camera swap-out.

Orbital ATK, one of NASA’s commercial shippers, plans to launch a cargo ship from Virginia on November 11.

Acaba was barely outside an hour when he had to replace one of his safety tethers, which keep him secured to the orbiting outpost and prevent him from floating away.

Mission Control noticed his red tether seemed frayed and worn and ordered Acaba to “remain put” with his good waist tether locked to the structure as Bresnik went to get him a spare.

Spacewalking astronauts always have more than one of these crucial lifelines in case one breaks. They also wear a jetpack in case all tethers fail and they need to fly back to the space station.

This was the third spacewalk in two weeks for the space station’s U.S. residents. Bresnik performed the first two with Mark Vande Hei.

As they ventured out, Bresnik noted they were flying over Puerto Rico.

“Get out of here,” replied Acaba, the first astronaut of Puerto Rican heritage.

Acaba’s parents were born there, and he still has family on the hurricane-ravaged island.

“There’s a whole line of people looking up and smiling today as you get ready to head out the door,” Bresnik said.

Friday’s spacewalk should be the last one for the year. Early next year, astronauts will replace the hand on the opposite side of the 58-foot robot arm, Canada’s main contribution to the space station. The original latching mechanisms are showing wear and tear since the arm’s launch in 2001.

The 250-mile-high complex is currently home to three Americans, two Russians and one Italian.(VOA)

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Rocket Lab is Set To Launch 10 NASA CubeSats

They will be placed in RailPODs aboard the Electron rocket that will ferry them to space

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Kepler, NASA, tissue
Rocket Lab to launch 10 NASA CubeSats on Sunday. Pixabay

In its first mission for NASA, the American aerospace manufacturer Rocket Lab is set to launch 10 small research satellites, or CubeSats, from New Zealand, the US space agency said.

Owing to bad weather, Rocket Lab was forced to postpone the earlier decided launch on December 12.

Rocket Lab is now targeting the ELaNa-19 launch on December 15 with a launch window opening at 11 p.m. EST from the company’s launch complex on the Mahia Peninsula in New Zealand, NASA said in a statement on Friday.

The CubeSats were built by three NASA centres, seven universities, and a middle school under the NASA’s Educational Launch of Nanosatellites, or (ELaNa-19) mission.

ElaNa-19 is NASA’s first to be completely dedicated to launching CubeSats under the agency’s Venture Class Launch Services program for small-satellite launches.

More than 250 students have been involved in the design, development and construction of the CubeSats scheduled to be flown as payloads on Rocket Lab’s Electron rocket.

NASA, Hubble, Keplar, asteroids
Owing to bad weather, Rocket Lab was forced to postpone the earlier decided launch on December 12. Flickr

“The major difference between today’s launch and previous #ELaNa missions is that for the first time, NASA will have a launch completely dedicated to CubeSats rather than having the small satellites ride along with a much larger spacecraft that is the primary mission,” NASA Launch Services Program officials wrote on Twitter on December 12.

The 10 CubeSats are named as CubeSail, CeREs, NMTSat, CHOMPTT, ALBus, STF-1, ISX, RSat, Shields-1 and DaVinci, NASA said.

These are built to standard dimensions of one unit (1U), and can be 1U, 2U, 3U or 6U in size. They generally weigh less than 1.33 kg per U — 6U may be up to 12 kg.

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They will be placed in RailPODs aboard the Electron rocket that will ferry them to space.

After the main payload deploys, the CubeSats will separate from their RailPODs. After 45 minutes in orbit, the CubeSat transmitters will turn on and university ground stations will listen for their beacons, determine their small satellites’ functionality and announce operational status.

CubeSat mission durations and orbital life vary but are anticipated to last at least three years. Upon mission completion, the CubeSats fall to Earth, burning up in the atmosphere, NASA noted. (IANS)