In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
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
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
There are two golf balls sitting on the moon.
721
A comet's tail always points away from the sun.
2
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Buzz Aldrin’s mother’s maiden name was Moon.
9
