The planet Mercury has the greatest variation in temperature of all of the planets. During the day the temperature rises to 4300 C but drops as low as -1400 C at night.
Earth is the only planet not named after a Greek or Roman god. The name is of English/German origin and simply means “the ground”.
If you missed Comet Hyakutake when it passed Earth in March 1996 don’t wait around for its return!
Gravitational interaction with Jupiter and Saturn stretched its orbit and it will not return to the solar system for another 70,000 years. This makes it one of the longest long period comets.