from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A tiny particle of meteoric dust, especially one of many that fall to the surface of the earth or moon.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an extraterrestrial particle, less than a millimeter in size, that has survived entry into the atmosphere without melting
from the GNU version of the Collaborative International Dictionary of English
- n. A meteorite so small that it drifts down to Earth without becoming intensely heated in the earth's atmosphere.
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
The shuttle astronauts will use the laser- and camera-tipped boom one last time late Wednesday night to check for any signs of micrometeorite damage to Endeavour's heat shield.
There are a variety of scales available in "visible" light imaging, from 0.5 meter scale to 100-meter scale; the highest scale imagers will re-image Apollo landing sites to look at micrometeorite-induced changes.
The space station's newly attached boom was used by shuttle Endeavour's astronauts Thursday to survey their ship for micrometeorite damage.
Data flows informed her that a micrometeorite had pierced the platform, damaging Drop Troopers in their Sleep Pods.
Steve's initial microscopic analysis didn't find any fossils, but he did find a micrometeorite and there are more samples yet to examine.
Thus, micrometeorite bombardment is an extremely important piece of the rings 'evolutionary puzzle because these impurities cause them to darken over time.
The crewmen used a long inspection boom to check for any signs of micrometeorite damage.
Vanguard 1 with its small suite of instruments provided unprecedented information on Earth's size and shape, air density and temperature ranges, and the micrometeorite density in space.
The crew and ground teams had to first determine what the problem was – initially, the crew feared that they had been hit by a micrometeorite, but determined the problem shortly thereafter.
As we reported earlier this week, this year's competition involved the added complication of designing a thermal micrometeorite garment TMG, the outside layer of the glove that protects the astronaut's hand from damage.