Earth Has a Second Moon!
How many Moons does Earth have? If you guessed one, you're wrong.
Astronomers have discovered 2020 CD₃, also known by its internal designation C26FED2.
It is a tiny near-Earth asteroid and temporary satellite of Earth.
It was discovered at the Mount Lemmon Observatory by astronomers Theodore Pruyne and Kacper Wierzchos on February 15, as part of the Mount Lemmon Survey or Catalina Sky Survey.
It is expected to remain in Earth orbit until April 2020.