Lobster is a c/7 diagonal spaceship that was discovered by Matthias Merzenich on August 19, 2011. It was the first c/7 diagonal spaceship to be found. It consists of two gliders pulling a tagalong-like object that then rephases them. It can be infinitely extended.

Lobster (spaceship) was voted Pattern of the Year for 2011 on the ConwayLife.com forums, tied with the fully universal Turing machine.