from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A very small, often dust-sized meteoroid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an extraterrestrial particle less than a millimeter in size
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
Sorry, no etymologies found.
It looked as if it was made of frozen rock, the nowmatte plating pitted with micrometeoroid impacts.
I mean completely authentic Mark III H-1s with single axis rolling convolute waist joints, and vintage Skylab A7Ls with micrometeoroid cover layers.
Among other maintenance tasks, they were there to investigatedamagetoan external handrail ofthe ISS that may have been caused by a micrometeoroid.
Time permitting, they will also inspect a chip on a handrail which may have been caused by a micrometeoroid.
‘Leonardo’ will be permanently attached on the current last flight, STS 133, after beefing up the outside to provide extra micrometeoroid debris protection for the module.
The astronauts have removed and repositioned external brackets, handrails, micrometeoroid shields, computer and electrical connections.
NASA also understands more about the hazards of micrometeoroid and orbital debris, and how to process the numbers, Shannon said.
And the reason they picked this distance is it's a safe distance away, but it's also close enough that if in that late inspection they find that they got dinged by a micrometeoroid or something which pierces the heat shield, and they've got trouble, they can get back to the space station and stay there for a while if need be and wait for a rescue mission.
That leads them on to another task, they're going to get involved in putting some micrometeoroid deflectors on the Russian side of the space station, just a little bit.
"Next week the SSRMS (Space Station Remote Manipulator System) will be used for an outside inspection of what appears to be a "dent" in the Lab module's exterior surface, specifically in the MM/OD (micrometeoroid/orbital debris) shielding surrounding the pressure shell."