Perils of small asteroids

2013 TX68 will make a pass by earth on March 5. It my be as far as 9 million miles away–safe. Or 11,000 mile away–uh oh.. At this point the calculators of such things are unsure and not able to give a definite answer. It is considered a small asteroid. But at 100 feet in … Read morePerils of small asteroids