Astronomers have figured out, among other things, how big the Universe is. Most people have no idea how they figured it out.
This video by the Royal Observatory Greenwich does a fantastical job of explaining it to mere mortals using no math but outstanding visualization. It’s so well made… you gotta watch it if you haven’t yet. Yes, even if you are one of my dear astronomer readers:
As widely reported, last week there was a transit of Venus. It’s a rare event so I wisely decided to go check it out at the Lawrence Hall of Science. Unwisely, I attempted to get there on bike – but after a one hour battle with gravity I gave up, came home, showered, and drove.
Over there, they had a bunch of telescopes properly set up with filters and pointing to the Sun. Lines were long but brisk. If you missed it, this is what it looked like:
More photos, including the beautiful view of the bay: