14
Feb
10

drifting in space

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. More information on McCandless and the mission can be found here

Advertisements

0 Responses to “drifting in space”



  1. Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


February 2010
M T W T F S S
    Mar »
1234567
891011121314
15161718192021
22232425262728

Archives

This blog is a collection of photos I have found around the internet. From famous battles, great sporting moments or just anything I find to be thought provoking. I do not take credit for any of the photos and any uncredited photos are because I have been unable to find the photographer/artist. Enjoy :) Mirror Eyes - Blogged

Join 9 other followers


%d bloggers like this: