A 100-pound person on Earth would weigh 38 pounds on Mars.
102
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Venus is the only planet that rotates clockwise.
310
There are two golf balls sitting on the moon.
721
41% of the moon is not visible from earth at any time.
103
It would take more than 150 years to drive a car to the sun.
569
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20