Watch Mercury transit the Sun in glorious 4K

Monday was a big day for astronomers around the world as it provided the rare opportunity to see Mercury transit the Sun. If you missed all the hype leading up to the event, the bad news is that you missed the chance to watch it happen live. The good news, however, is that NASA's Solar Dynamics Observatory (SDO) was keeping several close eyes on it, and NASA just released a new video showing the transit in gorgeous 4K. The video, which is just over a minute long, shows the tiny planet passing in...