Don’t forget the transit of Venus, moving in front of the the sun June 5.
No one currently alive on this planet will ever see it again.
Pessimist. ;’)
Artificial transits of Venus and Mercury (and eventually, the Earth) will probably be at least trivially available from satellites in a few decades.
And thanks for the reminder, btw!
http://www.transitofvenus.org/june2012/eye-safety/281-six-ways-to-see-the-transit-of-venus
This is interesting!
http://www2.eng.cam.ac.uk/%7Ehemh/transit.htm