Guess who’s dropping by for a quick visit this weekend? On Sunday, a 60-foot-wide (20-meters) asteroid named 2014 RC will skim just 25,000 miles (40,000 km) from Earth. That’s within spitting distance of all those geosynchronous communication and weather satellites orbiting at 22,300 miles. Size-wise, this one’s similar to the Chelyabinsk meteorite that exploded over Russia’s Ural … Continue reading "Get Ready for Sunday’s Close Flyby of Asteroid 2014 RC"