Pluto is smaller than Russia.
9
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
It would take more than 150 years to drive a car to the sun.
569
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
A comet's tail always points away from the sun.
2