Elon Musk Talks "X-Wing" Fins For Reusable Rockets, Seafaring Spaceport Drones

An anonymous reader writes Elon Musk sent a number of tweets recently in which he detailed a program to test the function of "X-Wing" style grid fins that could help spacecraft navigate upon re-entry. The tweets describing how it would work, also include an autonomous seafaring platform, which can hold its position within three meters even in a heavy storm, that would act as a landing pad. From the article: "The SpaceX reusable rocket program has been progressing with varying results, including an explosion over Texas back in August. While the incident didn't result in any injury or even 'near injuries,' Musk conceded in a tweet that this was evidence that '[r]ockets are tricky.' An earlier test flight from this summer involving an ocean splashdown was considered more successful, proving that the Space X Falcon 9 booster could re-enter earth's atmosphere, restart its engines, deploy its landing legs and make a touch down at 'near zero velocity.'"