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
It would take more than 150 years to drive a car to the sun.
569
Sound doesn't travel in space.
255
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
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 Earth gets 100 tons heavier every day due to falling space dust.
673
Venus is the only planet that rotates clockwise.
310