When you look up at the night sky, you’re seeing the long-ago light from distant stars. But how can you know how far away they really are? You can’t exactly roll out a measuring tape. Luckily, there’s ...

You just totally missed the transit of Venus. And there's more. It was awesome. No worries. The next one will be in 2117. You should be fine. Originally, I was going to do a pre-transit post to talk ...