Lasers
The Pentagon Is Spending $1 Billion a Year on ‘Directed Energy Weapons’
Washington is interested in the weapons but worries they'll end up in the 'valley of death' if the Pentagon isn't careful.
Wall of Green Lasers Blankets Sky in Hawai'i, Likely From Chinese Satellite
The National Astronomical Observatory of Japan has said that NASA believes the bright green lasers were likely from a Chinese satellite.
This 'Cold Laser' Is the Latest Skincare Fountain of Youth
LYMA says its anti-aging laser is 100 times more powerful than other popular LED devices like the Solawave.
NASA Releases Audio of Haunting Wind and Laser Strikes on Mars
The new recordings reveal the eerie soundscape of the red planet.
Can You Put Out a Wildfire With a Laser Weapon?
He helped the military shoot down missiles with lasers. Now he wants to turn high power lasers on a different target—wildfires.
Lasers Made of 'Spacetime Wave Packets' Are Breaking the Normal Rules of Light
“Turns out, pretty much everything we know in optics is out of the window.”
Hong Kong Protesters Trolled Police With an All-Night Laser Party
After the police arrested a student protest leader for buying laser pointers, protesters hit the streets with hundreds of them.
Scientists Use ‘Breathalyzers’ and Lasers to Measure Cow Burps and Farts
Oklahoma cows belch out about a half-pound of methane daily.
Aliens Might Notice Us if We Shot a Giant Laser at Them, Study Says
Two emerging technologies could be combined to produce a powerful infrared signal that could be spotted from distant planets, according to research in The Astrophysical Journal.
Scientists Want to Punch Holes in Clouds With Ultra-Hot Lasers from Space
The satellite laser communication revolution is just around the corner, but it has one especially obstinate foe—overcast weather.
A Manic Investigation Into the Many Medical Uses of Lasers
Or, how to occupy your mind when your dad is undergoing prostate surgery.
Watch the Trippy Winners of a Microscopic Film Contest
Nikon's Small World in Motion honors the best movie or time-lapse photography taken through a microscope.