The U.S. military used a laser Thursday to shoot down a “seemingly threatening” drone flying near the U.S.-Mexico border. It ...

Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front ...

For over 20 years, much of Diana Rau’s time has centered around a quintessential Colorado pastime: skiing. The 77-year-old ...