Sound doesn't travel in space.
255
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Pluto is smaller than Russia.
9
The Earth gets 100 tons heavier every day due to falling space dust.
673
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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
It would take more than 150 years to drive a car to the sun.
569