People keep mistakenly trespassing at this U.S. armed forces laser testing site hidden away in the Arizona desert. The military is urging caution.

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

In-office treatments can be very expensive, which is why at-home laser-hair-removal devices can be a worthwhile investment. Most at-home devices use IPL, or intense pulsed light, and there are a few ...

Since the emergence of COVID-19 in late 2019, the gold standard in testing for the disease has been a nuclear-derived technique: real-time reverse transcription–polymerase chain reaction, or real-time ...