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satellites

Physics

Photonic laser thruster could power spacecraft from Earth

The Photonic Laser Thruster can move a 750-gram object along a low-friction rail – a small step to using the technology to push satellites rapidly between planets

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Laser weapon

Technology

The US Army is building the most powerful laser weapon in the world

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Lidar beam

Technology

Single particles of light can be used for remote 3D surveillance

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Watch a beam of light bounce off mirrors in ultra-slow motion

Physics

Watch a beam of light bounce off mirrors in ultra-slow motion

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Huge underground lasers measure Earth’s spin with extreme precision

Physics

Huge underground lasers measure Earth’s spin with extreme precision

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The US Navy patented a device to make laser ‘ghost planes’ in mid-air

Technology

The US Navy patented a device to make laser ‘ghost planes’ in mid-air

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Chilled nanoparticles

Physics

This tiny glass bead has been quantum chilled to near absolute zero

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National Ignition Facility Laser System

Physics

Blasting lead with 160 lasers makes it incredibly strong, then explode

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A laser set up

Physics

New kind of light is a vortex beam that twists faster as it moves

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Black holes and lasers could let us cheat at interstellar travel

Space

Black holes and lasers could let us cheat at interstellar travel

Firing a laser at a pair of black holes can produce more energy than you start with, letting you travel the galaxy without needing a large amount of fuel

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Video

The hidden cities revealed by lasers

Video

Physics

The emptiness of space has a structure we could use to send messages

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Video

What do you do with the world's most powerful laser?

Video

Physics

Ultracold atoms can make strange and beautiful quantum fireworks

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