OK, so I stole the title from my own main page. I can't very well sue myself. But Mercury is pretty cool right now. I've been watching it the past few nights, and it's sinking like a rock (har har) in the sunset. It was up pretty high just a few nights ago, but now it's noticeably lower. It screams around the Sun in only 88 days, so every day at the same time you can see how far it's moved.
This is a picture I took of Mercury and the Moon just the other night. By tonight the Moon'll be way out of frame to the top, and Mercury will be lower. It's pretty amazing. Mercury is pretty dinky (5000 kilometers across, while the Earth is more like 13,000) and pretty far away (47 million km as I write this), so it's cool we can see it at all. ...
