A tiny cosmic object has been pulled into earth’s orbit. Astronomers have discovered an asteroid - called 2020 CD3 - temporarily orbiting the Earth. Asteroids which orbit the planet are referred to as mini-moons. The object has a diameter between 1.9 - 3.5m. Researchers say this is a ’big deal as out of one million known asteroids, this is just the second asteroid known to orbit Earth’.