SpaceMars
Sunsets on Mars are blue.
Dust grains in the thin atmosphere are the right size to scatter red light forward and let blue through near the Sun, inverting what happens on Earth.
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.
- Mars has a volcano three times taller than Everest.
- Olympus Mons is around 600 km wide with slopes averaging about five degrees.
- A total eclipse is an astonishing coincidence.
- Some of the static on an old TV was the Big Bang.
- Almost all of the roughly 1,500 injuries from the 2013 Chelyabinsk meteor came from flying glass.
- Almost all of the universe is missing.