"Alpha Centauri is 4.3 light-years away ... "If this all works right, we can hold the beam together in space a very long distance — thousands of times the distance from Earth to the sun ...

Wouldn't the adjacent beam of light appear motionless? Maxwell's equations didn't seem to allow light to slow down or stop when moving through space. Einstein's answer—that light's speed is ...

This "solar statite" would use light pressure and magnetic fields ... Economically, the development of space-based infrastructure for beam propulsion represents a substantial investment.

Scientists have created an ultrashort electron beam with five times more peak current than any other similar beam on Earth.

Physicists at SLAC National Accelerator Laboratory in the US have shattered the record for most powerful beam of electrons, ...

The new findings detail a method to measure the force of laser light on what are known as ... this phenomenon could use a ground- or space-based laser beam to push a lightsail on a spacecraft ...

Mark Dennis and co-workers use mathematical knot theory to construct complex functions in an abstract 3D space on a periodic braid. The knot function is then embedded in a propagating light beam ...

Researchers at UCSB have successfully moved quantum experiments from bulky lab setups to a chip, in a global first.

Free-space optical communication, or FSO, is an interesting and easy way to transmit signals through light beams. Forget expensive lasers or commercial-grade equipment; this video by [W1VLF ...