For those interested, an example of the trouble cosmic rays cause the Hubble Space Telescope: http://archive.stsci.edu/cgi-bin/mastpreview?mission=hst&dataid=U2

For those interested, an example of the trouble cosmic rays cause the Hubble Space Telescope: http://archive.stsci.edu/cgi-bin/mastpreview?mission=hst&dataid=U2LX0508T http://archive.stsci.edu/cgi-bin/mastpreview?mission=hst&#38... Of course, this is cosmic rays hitting the focal plane and not a memory corruption issue. The Space Telescope Science Institute schedules multiple exposures so they can be stacked on the ground to eliminate the traces.