You might have heard that today’s a pretty special day, astronomically speaking. Venus is in transit between Earth and the Sun today, which is a once-in-a-lifetime event. Today only, right before sunset in the United States, if you look up at the sun, you’ll be able to see the silhouetted Venus passing between us and our life-giving star. And due to the differences between Venus’s solar year and our own orbit around the Sun, you’ll have to wait a hundred years until this event happens again.
In other words, if you’re American, you don’t want to miss this if you have any curiosity about the heavens at all. And luckily, there’s an app that will help you make sure you don’t.