An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Venus is the only planet that rotates clockwise.
310
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
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
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
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
A comet's tail always points away from the sun.
2