In Astronomy, galaxies look smaller the farther away they... | funfact.wiki | funfact.wiki
In Astronomy, galaxies look smaller the farther away they are up to a redshift of about 1.6 — beyond that, more distant galaxies look larger again. Because the universe expanded while their light traveled, very distant galaxies were much closer when that light left them.
Earth has 365 days in a year, but actually rotates 366 times. The extra rotation comes from its orbit around the Sun — an example of the coin rotation paradox.
In 2013, during a gameSuper Mario 64 speedrun, Mario suddenly teleported. A $1,000 bounty yielded no answers for 8 years. The cause: spaceradiation flipped a single bit in the console's memory, altering Mario's position coordinates.
The Moon's orbit doesn't spiral around Earth as most people imagine. Because the Earth-Moon distance is tiny compared to the Earth-Sun distance, the Moon's actual path through space is nearly circular, traveling alongside Earth around the Sun.
About 80–90% of a rockets total weight is fuel. To send 1 kg of cargo to space, roughly 10 kg must be launched. Most of a rockets kinetic energy is carried away by the expelled gas, not the rocket itself.