It ranks spaceships featured in popular sci-fi stories from slowest to fastest. It's divided between ships that are slower than the speed of light and ships that are faster than the speed of light.

Is it a bird? Is it a plane? No, it's super Neptune! But this Superman-mimicking planet is not blasting through space on its ...

An illustration of a Neptune-like planet being dragged through space ... speed of 1.2 million miles per hour (1.9 million kilometers per hour). If the discovery is confirmed, this will be the ...