Between the time it was discovered and the time it was unclassified as a planet, Pluto did not even complete one revolution around the sun.
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.
Scientists are working on a “GPS” that works in space. It uses x-ray’s emitted by pulsars to get a position anywhere, accurate to 5km. Its called XNAV.
If space is truly infinite and has an isotopic matter distribution, then probability dictates that there is an exact copy of you in the universe within 10 to the 10^28 meters of you, due to the finite possible arrangements of matter.
Ethyl Formate, the chemical that gives raspberries their flavor, has been found emanating from dust clouds in space.
Space travel gives astronauts a feeling of being completely engulfed by a profound sense of universal connectedness. Edgar Mitchell described what it’s like to stand on the moon and look at the Earth: “You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it. From out there on the moon, international politics look so petty. You want to grab a politician by the scruff of the neck and drag him a quarter of a million miles out and say, ‘Look at that, you son of a bitch.’ ”
When astronauts return from space they are usually ~ 2 inches taller. This is due to the low gravity in space that allows for the vertebrae in the spine to spread apart.
Our Milky Way galaxy will collide with the neighboring Andromeda galaxy in 4 billion years.