Micrometeoroids and Orbital Debris (MMOD) - NASA Millions of man-made debris and naturally occurring micrometeoroids orbit in and around Earth’s space environment at hypervelocity speeds averaging 10 km s (22,000 mph) This “space junk” collides with spacecraft and satellites potentially causing serious damage or catastrophic failure
Micrometeoroid - Wikipedia A micrometeoroid is a tiny meteoroid: a small particle of rock in space, usually weighing less than a gram A micrometeorite is such a particle that survives passage through Earth's atmosphere and reaches Earth's surface
Micrometeoroid | Astronomy, Space Exploration Impacts | Britannica Micrometeoroid, a small grain, generally less than a few hundred micrometres in size and composed of silicate minerals and glassy nodules but sometimes including sulfides, metals, other minerals, and carbonaceous material, in orbit around the Sun
Micrometeoroid and Orbital Debris Environment Hypervelocity Shields Conduct meteoroid debris probability analysis Compare MMOD analysis results with requirement Updates to design, operations, analysis, test, or failure criteria Update Iterate as necessary to meet requirement R Meet Requirements? FGB shields SM augmentation shields provide protection from 1-1 5cm diameter aluminum projectiles (typical)
Critical Knowledge inSight: Mitigation of Micrometeoroids and . . . - NASA Micrometeoroids and orbital debris (MMOD) produce an impact threat that could cause damage to or even the loss of a spacecraft Mike Squire served as a Principal Engineer for Micrometeoroids and Orbital Debris (MMOD) at NASA
Micrometeoroid - an overview | ScienceDirect Topics A micrometeoroid refers to small particles between 10^-6 and 10^-3 grams that frequently impact spacecraft, causing erosion of cover glass and solar array coatings, leading to performance degradation