One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts get taller when they are in space.
224
Sound doesn't travel in space.
255
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
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