Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
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
The light hitting the earth right now is 30 thousand years old.
163
The sun is 330,330 times larger than the earth!
190
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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