Picture Of The Day

I missed blogging about this launch a few days ago but I had to post the photo:

What you're looking at is called a "shock egg," or the Prandtl-Glauert singularity, or a shockwave that compresses air and forces the vapor out of it. You see this kind of stuff a lot in photographs trailing behind fighter jets, but it's especially awesome when it happens to rockets.

(via)