There are two golf balls sitting on the moon.
721
The sun is 330,330 times larger than the earth!
190
Astronauts get taller when they are in space.
224
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Summer on Uranus lasts for 21 years.
358