LOOKING UP (What Do We See?). Information from the Cosmos. Ordinary matter (meteors, cosmic rays, lunar rocks) Neutrinos (Sudbury Neutrino Observatory!) http://www.sno.phy.queensu.ca/ Gravitational waves. But most important of all. L I G H T !
(What Do We See?)
Light ofall colours, that is, even those which
are not visible to the human eye!
Imagine the Earth perpetually shrouded in clouds.
Suddenly the clouds lift. What do you see?
NOT the shadow of the Earth!
Merely changing perspectives.
See simulations in class! And visit
…the Milky Way