If the Sun stopped producing energy today, we wouldn't
know about it for ten million years.
On a clear night in the autumn you can see two million
years back in time.
The first living creature to orbit the Earth was a dog
People in space are up to 5 centimeters taller than they
are on Earth. Without the effect of gravity pressing them
down, their vertebrae (sections of their spine) move a
little further apart.
The footprints that Neil Armstrong and the other astronauts
left on the surface of the Moon will still be there in a
million years' time.
Jupiter is so big you could fit the Earth inside it 1300
On the Sun a person would be as heavy as an elephant is
on Earth. The Sun is 330,000 times more massive than the
Earth, so its gravity is very strong.