If you and another object are in the same orbit and you want to travel towards it, you would have to thrust away from it.
If you could get a teaspoon of a neutron star, it would weigh more than a mountain.
If you were able to fold a piece of paper 103 times, it would be thicker than the observable universe.
Calculating pi past 60 decimal places has no application in the real world because that is all that would be needed to calculate the angle of a planck length (the smallest unit of distance) at the edge of the observable universe.
Sea plankton are growing on the outside of the ISS.
The Sun contains 99.85% of all the matter in the Solar System.
From the perspective of a light beam,it's travel time is instant, regardless of distance as time slows to halt at the speed of light.
If like metals in space touch, they instantly can weld together.
Technically the moon is not a true satellite of Earth because it is affected by the sun's gravity more that the Earth's. Some even consider the Earth and Moon as a binary system.
The man who discovered Uranus, William Herschel, wanted to call it "George".
There is a void 50 million light years in diameter, representing approximately 0.27% of the diameter of the known universe that is completely empty and it is getting bigger.
After returning from space, an astronaut can sometimes be two inches taller from the cartilage expanding in their backs.
Earth is struck by 5 pounds of sunlight every second.
Technically, we live inside the sun.
WISE 1828+2650 is a star that is only 28 degrees centigrade.
If it were brighter, the Andromeda Galaxy would appear six times larger than the moon.
The average density of the universe is one hydrogen atom per cubic meter.
The Sunset is an illusion. You're not actually looking at the sun but rather the light from the sun bent around the Earth due to the atmosphere. The sun sets ten minutes before you see it and it rises ten minutes after you see the sun rise.
It is impossible to write out the numerical representation of a googleplex with pen and ink.
We have no idea what 96% of the universe is.
Saturn would float in a large enough body of water.