Once in a mini-moon. You won't be able to see the 2024 PT5 asteroid when it hitches a ride in the moon's orbit of Earth starting today — not with your average backyard telescope — but that doesn't ...
Since the first sighting of the first-discovered and largest asteroid in our solar system was made in 1801 by Giuseppe Piazzi, astronomers and planetary scientists have pondered the make-up of this ...