Asteroid 2024 DW flew about 139,000 miles (224,000 km) away from Earth. The space rock was estimated to be about 43 feet wide (13 m). Credit: Space.com | animation: NASA/JPL-Caltech | edited by Steve ...
In the late 1960s, a group of graduate students at MIT took on an extraordinary challenge: figuring out how to stop an ...
In the 1960s, when the possibility of an asteroid impact alarmed the American public for the first time, MIT students drafted ...