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English: At about 100 meters from the cargo bay of the space shuttle Challenger, Bruce McCandless II was further out than anyone had ever been before. Guided by a Manned Maneuvering Unit (MMU), astronaut McCandless, pictured above, was floating free in space. McCandless and fellow NASA astronaut Robert Stewart were the first to experience such an "untethered space walk" during Space Shuttle mission 41-B in 1984. The MMU works by shooting jets of nitrogen and has since been used to help deploy and retrieve satellites. With a mass over 140 kilograms, an MMU is heavy on Earth, but, like everything, is weightless when drifting in orbit. The MMU was replaced with the SAFER backpack propulsion unit.
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This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: S84-27031.

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Огноо/Цаг Хэмжээ Хэрэглэгч
13:53, 18 September 2007 1,000 × 750 (85,452 bytes) w:en:Motorrad-67 (хэлэлцүүлэг | оруулсан хувь нэмэр)

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depicts англи

12 Хоёрдугаар сар 1984

catalog code англи

S84-27031

MIME type англи

image/jpeg

checksum англи

abc3f1a63d49af84465612d7837d355204e3a6cb

determination method англи: SHA-1 англи

data size англи

3,171,656 byte

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2,248 pixel

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2,997 pixel

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одоогийн15:33, 9 Дөрөвдүгээр сар 201815:33, 9 Дөрөвдүгээр сар 2018-н байдлаарх хувилбарын жижиг хувилбар2,997 × 2,248 (3.02 МБ)Derived upscale from parent image, 1,000 × 750 → 2,997 × 2,248, 199% larger in resolution
12:50, 2 Аравдугаар сар 200712:50, 2 Аравдугаар сар 2007-н байдлаарх хувилбарын жижиг хувилбар1,000 × 750 (83 КБ)Liftarn{{Information |Description=At about 100 meters from the cargo bay of the space shuttle Challenger, Bruce McCandless II was further out than anyone had ever been before. Guided by a Manned Maneuvering Unit (MMU), astronaut McCandless, pictured above, was f

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