Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The earth is .02 degrees hotter during a full moon.
157
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Summer on Uranus lasts for 21 years.
358
Some asteroids have other asteroids orbiting them.
131
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131