The heart of an astronaut actually gets smaller when in outer space.
216
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
The earth travels through space at 660,000 miles per hour.
189
Only 55% of Americans know that the sun is a star.
986
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.
8
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118