If you went out into space, you would explode before you suffocated because there's no air pressure.
149
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 sun is 330,330 times larger than the earth!
190
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
A comet's tail always points away from the sun.
2
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
It would take more than 150 years to drive a car to the sun.
569
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20