NASA monitoring possible Earth-bound asteroid for 2046

ViewNASA said this week it is tracking an asteroid that could impact Earth in 2046. 

Astronomers recently discovered 2023 DW, which flew by Earth in late February. The 50-meter-wide asteroid has a 1 in 607 chance of hitting Earth on Feb. 14, 2046, according to NASA data. 

NASA's Torino Impact Hazard Scale ranks 2023 DW...