The U.S. government is stepping up efforts to protect the planet from incoming asteroids that could wipe out entire regions or even continents. The National Science and Technology Council released a report last week calling for improved asteroid detection, tracking …
When the asteroid named 2014 J025 passed by the Earth in April, it came within 1.1 million miles of the planet — a close shave by cosmic standards and also the nearest in more than a decade. And J025 was …
On Feb. 15, a 13,000-ton rock plunged through the skies above Chelyabinsk, Russia. It shone 30 times brighter than the sun, and hurtled at 42,000 miles per hour toward a city of more than a million people. As the rock …
