For the last day, ScienceBlogs has been teasing some big news on Twitter. Perhaps we were all Belle de Jour in disguise? Maybe we would rip off our masks to reveal the mainstream media lurking underneath? Maybe we would even, gasp, shock, start blogging about science?

No, it’s none of these. The cat, now let loose from its bag/box in a flurry of collapsing probabilities, is that we’re joining up with National Geographic for a big, sciencey love-in.

There’ll be a fair bit of cross-promotion on both sites, and we suddenly get access to a massive archive of pics and videos. And to clarify, Not Exactly Rocket Science will remain unchanged in terms of style or content. It just means