It snows in the upper atmosphere of Mars but vaporizes before reaching the ground.
There was a time when Mars had large amounts of surface water. Proof of this facts have been fund on certain valleys and canyons.
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
December 21st 1968, was the first time that humans actually left the Earth, when Apollo 8 became the first manned space vehicle to leave Earth orbit and to orbit the Moon.
A satellite launched by Britain was called Black Arrow.
Our moon is in fact moving away from Earth at a rate of about 2.5 cm per year. There are different statistics for the moon's rate of moving way from the Earth, some claim the rate of moon's moving away from the Earth is up to 34 cm per year but according to the most credible sources it moves 2.5 cm away from Earth each year.
Buzz Aldrin's(second man on the moon) mother's maiden name was "Moon".
Did you know that astronauts cannot burp in space?
It is said that just 20 seconds worth of fuel remained when Apollo 11's lunar module landed on the moon.
A comet's tail always points from the sun.
Every day, Earth accumulate 10 to 100 tons of material.
Did you know that astronauts get taller when they are in space?
The largest found meteorite was found in Hoba, Namibia. It weighed 60 tons.
Did you know that the heart of an astronaut actually gets smaller when in outer space?
The Earth orbits the Sun at a speed of 66,700mph.
The earth is .02 degrees hotter during a full moon.
Some large asteroids even have their own moon.
On average, Saturn is 886 million miles away from the Sun.
Saturn's density is less than water on average, although this fact is a bit misleading. As one looks deeper into the planets gas surface, density rises well above water.
Jupiter has 60 known moons, but some of them are quite small and look fainter.
A 100 pound object on Earth would weight 116 pounds on Saturn.
Mars is red because it is rusty. There is a lot of iron in the soil, and the air on Mars has made it turn red-just like rusty iron on Earth.
It takes about 29.46 Earth years for Saturn to complete its orbit around the sun.
Mars complete its orbit around the Sun in 687 days.
The atmosphere of Saturn comprises mostly of Hydrogen and Helium.
At its brightest, Mars outshines every other planet apart from Venus.
Only moon of Saturn to have an atmosphere out of its thirty satellites is Titan.
Jupiter has a mass 318 times greater than the Earth's and a diameter that is 11 times larger.
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