Cosmic
Rays-The Smallest Meteors???
(the video is about 13MB and
will take a while to load completely)
If there isn’t a
meteor shower to view, set up a little cosmic ray cloud chamber, it’s
very similar in that you don’t
know when one will appear, there are big
ones and little ones, by the time you say
“hey look at that
one” it’s gone.
Some rays are from the sun,
protons take about 3 days to get to Earth as opposed to the 8.3 minute travel
time for photons.
Some rays are From Beyond
Like supernovae:

And ultra high energy rays, we don’t know
where they come from!