Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
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 typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The earth rotates more slowly on its axis in March than in September.
145
The Earth gets 100 tons heavier every day due to falling space dust.
673
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
If you went out into space, you would explode before you suffocated because there's no air pressure.
149