A series of asteroids bigger than the Great Pyramid of Giza is passing by Earth

Multiple asteroids will pass close by Earth in the next few weeks — and one that passed on Friday was around the size of the Great Pyramid of Giza in Egypt, with a diameter of 525 feet. 

On Friday, Asteroid 2021 SM3 passed within 3.5 million miles of Earth, according to data from NASA's Center for Near Earth Object Studies. The asteroid was only first observed a few weeks ago.

The asteroids that are expected to pass Earth, along with 2021 SM3, are classified as Near Earth Objects. NASA said that NEOs are "comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth's neighborhood."