Free Floating Planet

Have you ever imagined if our solar system does have more than single sun? It would be so hot. This next entry gets the eighth spot.

8. Free Floaters

There are known exoplanets that have one, two and even three suns. But one bizarre class of planet-sized objects has no suns at all, and instead floats untethered through space. Called “planemos” the objects are similar to, but smaller than, brown dwarfs, failed stars too small to achieve stellar ignition.