Eight years ago on 8th June 2004 I was lucky enough to see the transit of Venus from Jodrell Bank Observatory. The website I made for that is still around. Over the next few hours we'll have another transit of Venus - the last until 2117!
The transit will be viewable from many places on Earth. If you don't have a view of the Sun from where you are (clouds or the planet getting in the way), there are plenty of live feeds online:
- LCOGT and the Institute for Astronomy, Hawaii
- The RAS via the GLORIA project
- NASA Edge
- Astronomers Without Borders
- Planet Hunters
- and more
If you decide to view it in real life remember to always use safe solar filters or a proper solar telescope. Don't look at the Sun without protection.
The transit was important, historically, for measuring the Astronomical Unit via the parallax method. This year you can recreate those historical measurements by submitting your own timings via a phone app or posting a tweet.