A comic about why witches are stereotyped as riding broom:
Apparently once upon a time there was an ointment one could rub on a broom - that was most popular amongst herbalists (such as many witches) - that was a hallucinogenic. One would ride the broom for masturbating purposes and the ointment would be absorbed through the mucus membrane of the vagina and give the rider a sensation of flying.
A team of astrophysicists at the German Aerospace Center (Deutsches Zentrum für Luft und- Raumfahrt; DLR), together with German and European colleagues, has discovered the most extensive planetary system to date. Seven planets circle the star KOI-351 – more than in other known planetary systems.
They are arranged in a similar fashion to the eight planets in the Solar System, with small rocky planets close to the parent star and gas giant planets at greater distances. Although the planetary system around KOI-351 is packed together more tightly, it provides an interesting comparison to our cosmic home.