The left digitally scanned electron micrographs depicts a tiny craters in the window of the Space Shuttle Challenger following the STS-7 mission in June 1983. The pit contains titanium oxide which is a pigment used in spacecraft paint.
Opposite image depicts a scanned electron micrograph of a crater found in louvers on the Solar Maximum Mission Satellite (SMMS) returned to Earth in April 1984 by the crew Scientists at the Johnson Space Center (JSC) comprising of six holes per square foot in the louvers, most of which were caused by hyper-velocity impacts caused by remnants of space trash, in this case paint flakes, traveling at more than 50,000 m.p.h. before impact.