# Class S10 Runaway Star

    These are stars that have been catapulted off-course, usually by the combined gravity-wells of two or more other stars, and now travel at great speed across the galaxy. They are usually weak, red stars, and rarely have planets.

# Class S11 Pulsar

    These are very similar to Blue Dwarfs, but are entirely made up of neutrons (The neutral particles in the nucleus of an atom). They are incredibly dense, being that they are only the size of a small planet, and spin at huge speeds. The reason for this is that it has contracted very quickly down to a tiny fraction of its normal size. This is the same effect that occurs if you sit on a wheelchair with your arms outstretched and spin round, then quickly withdraw your arms. Your speed will increase. Pulsars also have an unpredictable surface, and emit light and radiation from some sectors but not from others, making them look like they are eerily pulsing. They sometimes have planets, but these are usually highly compressed gas-giants, which are unsuitable for landing on. Pulsars are hugely radioactive and have an immense gravity well, so it's not a good idea to get close to them.