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Ever since launch, there's been a number of people who've claimed to have seen flying saucers and other esoteric objects in SOHO images. Although some of these supposed pictures of UFOs can seem quite intriguing, they have always turned out to have a quite ordinary cause...
Originally posted by alfa1
Like a whole bunch that people have seen before, its cosmic rays...
Ever since launch, there's been a number of people who've claimed to have seen flying saucers and other esoteric objects in SOHO images. Although some of these supposed pictures of UFOs can seem quite intriguing, they have always turned out to have a quite ordinary cause...
How To Make Your Own UFO
post by The X
"Cosmic Rays", you mean sunshine, or, reflections?.
Galactic cosmic rays (GCRs) are the high-energy particles that flow into our solar system from far away in the Galaxy. GCRs are mostly pieces of atoms: protons, electrons, and atomic nuclei which have had all of the surrounding electrons stripped during their high-speed (almost the speed of light) passage through the Galaxy. Cosmic rays provide one of our few direct samples of matter from outside the solar system. The magnetic fields of the Galaxy, the solar system, and the Earth have scrambled the flight paths of these particles so much that we can no longer point back to their sources in the Galaxy. If you made a map of the sky with cosmic ray intensities, it would be completely uniform. So we have to determine where cosmic rays come from by indirect means.
imagine.gsfc.nasa.gov...
Originally posted by swan001
... and would make a circular imprint on the photo's pixels, not a line. You can't see a ray looking at its side.
Originally posted by swan001
They move at the speed of light...
Originally posted by swan001
reply to post by The X
Cosmic rays are particles that are highly charged. They move at the speed of light and would make a circular imprint on the photo's pixels, not a line. You can't see a ray looking at its side.
A critical item in the thermal design is the inclusion of a passive radiant cooler for each CCD detector chip. In order to minimize thermal dark current noise and to reduce the effects of radiation damage on the CCDs, the chips operate at about -80ºC.