542 Toughest Asteroid

Published: June 28, 2019, 3 p.m.

b"An asteroid has been discovered that comes very near to the Sun where it receives 12.6 times the radiation that heats the planet Mercury's surface to 800 F. This hardy space rock has made this trip many times and is likely to be made of extremely tough materials and in the future could prove to be a valuable source of raw materials for human space colonists."