There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
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
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The strangers in your dreams are actually people that you've seen in real life.
50