Summer on Uranus lasts for 21 years.
358
It takes eight and a half minutes for light to get from the sun to earth.
159
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
Astronauts get taller when they are in space.
224
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15