A 100-pound person on Earth would weigh 38 pounds on Mars.
102
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
It would take more than 150 years to drive a car to the sun.
569
It 'snows' metal on Venus.
13
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The heart of an astronaut actually gets smaller when in outer space.
216