There are more stars that all of the grains of sand on Earth.
A solar day on the planet Mercury is twice as long as its year
Due to gravitational effects, you weigh slightly less when the Moon is directly overhead.
The planet Saturn has a density lower then water so, if there was a bathtub large enough to hold it, Saturn would float.
When you look at the full moon, what you see is only one-fifth the size of Africa.
The fastest shooting stars travel at 150,000 miles per hour.
It is impossible for a solar eclipse to last more then seven minutes and forty seconds.
If the human body had the same mass as the sun, it would actually produce more heat.
Some asteroids in our solar system are so large that they even have their own moons.
Earth's warm summer and cold winter are not caused by varying distances from the sun, but rather by the tilt of the earth's axis is as it proceeds in its orbit.
The last time an astronaut walked on the moon was in 1979
The first meal eaten on the moon by Neil Armstrong and Buzz Aldrin was four bacon squares, three sugar cookies, peaches, pineapple-grapefruit drink, and coffee.
The telescope on Moutn Palomar, California, can see a distance of 7,038,835,200,000,000 million miles.
The Mars Rover Spirit is powered by six small motors the size of C batteries. It has a top speed of 0.1 miles per hour.
Comet tails always face away from the sun.
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