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
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Astronauts get taller when they are in space.
224
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121