A video going around Reddit shows the terrific consequence NASA cosmonaut Dale Gardner flew wholly untethered in space so as to charm a artificial satellite .
There are a lot of terrifying things you could see in space , from mysteriousmassive voids250 to 330 million abstemious - years across , to petite droplet of water inyour space suitthat could very easily drown you . But the moniker of " most terrific blank space exposure " is generally given to a photo of astronaut Bruce McCandless II , pick out from the place shuttle Challenger on February 7 , 1984 .
Onthat twenty-four hour period , and again on February 9 , he and fellow cosmonaut Bob Stewart strapped themselves into Manned Maneuvering Units ( MMUs ) and left the consolation of their ship to make an untethered space walk of life as they and Challenger hurtle along at nigh 28,900 kilometre per hour ( 18,000 miles per minute ) .

Don’t look down.Image credit: NASA
Bruce was the first to make the leap , becoming the first human being in history to make an untethered spacewalk .
There ’s video , too .
While terrifying , there ’s an unmarked NASA spacewalk which looks every bit terrifying to untrained Earth - dwellers . In 1984 , astronaut Dale Gardner and Joseph Allen flew untethered to recover two communicating satellites which had been target into incorrect range due to Eruca vesicaria sativa failure .
With champion ineffective to place the satellites into their correct orbit , NASA devised a plan for astronauts to wear spacesuits and Manned Maneuvering Units ( MMUs ) to regain the Westar 6 and Palapa B2 satellites for tax return to Earth , while Anna Fisher maneuver a Remote Manipulator System .
Both Gardner and Allen took turn of events roll up satellite untethered , with Gardner flying the MMU to capture Westar .
" After Hauck and Walker aviate Discovery to within 35 substructure of Palapa , Allen and Gardner exited the airlock to lead off the spacewalk portion of the orbiter capture . Allen donned the MMU mounted on the side rampart of the cargo bay , attached the stinger to its arm , and flew out to Palapa . Once there , he enter the stinger into the satellite ’s Apogee Kick Motor bell and using the MMU ’s position ascendancy organization stopped Palapa ’s spin,“NASA explainsof the first of the two satellite collecting .
" Fisher then steered the RMS to fascinate a grapple fixture mounted on the stinger between Allen and the satellite . She then channelise them over the cargo bay tree where Gardner expect to absent its omnidirectional feeler and add the span structure . However , Gardner could not attach the abdominal to the satellite due to an unexpected clearance take on the satellite . Using a backup plan , Allen undocked from the stinger , leaving it attached to the satellite as well as the RMS , and stow the MMU in the load Laurus nobilis . With Allen now keep the satellite by its antenna , Gardner attach an adapter to the bottom closing of the satellite to assure it in its birthplace in the payload bay . "
The mission was a succeeder , with the satellite captured within 6 time of day . The 2d satellite collection , by Gardner , run without a hang-up and was nail in 5 hour and 42 minutes . Both satellites were returned to Earth , along with some of the most terrifying space footage we ’ve take in .