Earth's Secret 'Moon' for 3800 Years!

追加: 2026-05-06

[00:00:00]Earth has a secret second moon.

[00:00:02]Not exactly, but we have quasi-moons.

[00:00:05]These aren't true [music] satellites.

[00:00:07]They're asteroids that orbit the Sun, but in a special path making them appear to circle Earth from our perspective.

[00:00:13]Here's the crazy [music] part. Asteroid 2023 FW13, discovered by Pan-STARRS in March 2023, [music] is one of the most stable.

[00:00:22]It's estimated to have been our cosmic companion since 100 BC and will stay until 3700 [music] AD.

[00:00:29]This small rock, about 15 m across, is primarily influenced by the Sun.

[00:00:34]But its resonant orbit keeps it closely dancing with Earth.

[00:00:38]It's a fascinating [music] example of celestial mechanics.

[00:00:41]What other hidden cosmic neighbors do you think Earth might have?

[00:00:45]Subscribe to explore more amazing space phenomena.

[00:00:48]Comment or tap the description for links. [music]