An asteroid just zipped past Earth closer than communication satellitesSky gazers at the Catalina Sky Survey based in Arizona, U.S. spotted a car-sized asteroid on Saturday, December 17, as it flew by our planet, closer to the surface than the communication satellites that orbit the Earth, CNET reported.What do we know about asteroid 2022 YO1Due to its proximity to the Earth, 2022 YO1 is classified as a Near Earth Object (NEO), and it could hit the Earth during one of its future orbits.Even if it were to race toward the Earth, it would likely burn up completely in the atmosphere, resulting in a fireball and never hitting the ground.Scanning the skies for giant onesAstronomers, however, scan the skies looking for giant asteroids with the potential to kill planets that might be headed our way.The space telescope designed to spot asteroids 460 feet (140 m) or larger is expected to be launched in 2028 and aims to discover 90 percent of asteroids this size within a decade of its launch, the NASA webpage said."