NASA has posted the first part of a two-part video discussing some answers to common questions about the sun and "space weather". If you've ever wondered about the difference between a solar flare and a coronal mass ejection, this is the video for you. It should also ease our fears about massive sun flare-ups destroying the planet, right? Right?
This also proves that having the title "Heliophysicist" must be a cool thing on their business cards.
UPDATE: Here's Part 2 of the video, with more questions and answers from our favorite heliophysicists:
Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.