SpaceMoon
The Moon is escaping us, an inch and a half every year.
One day it will be too far away to ever cause a total eclipse again.
Source
This fact is written from the English Wikipedia article it links to, so you can check every word in one tap. Fact Drop rates that source 4 out of 5 for credibility, and the rating travels with the fact on the back of its card in the app.
More space facts
Space facts are where the numbers stop making sense. A total eclipse only works because the Sun is 400 times wider than the Moon and 400 times further away. Venus spins backwards, some of the static on an old TV was the Big Bang, and almost all of the universe is missing. Every fact here links to its source.
- A total eclipse is an astonishing coincidence.
- The Moon has a tail, like a comet.
- The dark side of the Moon is not dark.
- Footprints on the Moon will outlast every city on Earth.
- Seismometers left by Apollo crews showed the Moon ringing for up to an hour after an impact.
- Rhythms preserved in 1.4-billion-year-old rock record a day of roughly 18 hours.