There are more trees on Earth than stars in the Milky Way... | funfact.wiki | funfact.wiki
There are more trees on Earth than stars in the Milky Way. A 2015 Nature study estimated about 3 trillion trees, while NASA counts 100 to 400 billion stars—over seven times more trees. The same study found Earth's trees have dropped about 46% since civilization began.
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.
NASA's AD-1 was an oblique wingaircraft — one wing pointing forward, the other backward. At supersonic speeds, swept wings reduce drag, but sweeping both shifts the center of lift. The oblique wing solved this by rotating both wings on a single pivot.
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.
Metasequoia was known only from fossils over 150 million years old until living specimens were confirmed in China in 1946. Only about 4,000 trees remained at the time, and every metasequoia in the world today descends from them.