Christmas asteroid the size of the Eiffel Tower to blast past Earth at 4,000mph

dailystar.co.uk:

collision course with our planet.Astronomers track thousands of asteroids, comets, and other objects, finding new ones are found every day.In September, reports said an asteroid close to Earth may have once been part of the Moon before an ancient impact.Researchers claimed an orbiting rock so small that it is four million times too small for us to see with the naked eye, could be a fragment from the Moon floating through space.The study published in the journal Nature Communications Earth & Environment says that if the asteroid came from the lunar rock, it would give an incredible insight into Earth's history.It would also make the asteroid known as Kamo`oalewa, the first near-Earth object to have originally come from the Moon, LiveScience.