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Currently Browsing: Results for Tag "optics"

Scientists use lasers to create the brightest artificial star in the sky

Scientists use lasers to create the brightest artificial star in the sky Late last month, astronomers with the ESO’s Very Large Telescope began operation of a new tool called the Four Laser Guide Star Facility (4LGSF).This incredible new laser rig will create the brightest artificial star ever seen, and use it to produce some of the most incredible imagery we’ve yet to collect about the heavens.

New telescope chip enables clearer view of alien worlds

New telescope chip enables clearer view of alien worlds The new development comes in the form of an optical chip that can be used to upgrade an existing telescope.Steve Madden said the chip worked much like active noise-canceling headphones.

Optical shock: Scientists have imaged light going faster than itself

Optical shock: Scientists have imaged light going faster than itself Louis has taken images of a laser pulse generating an optical Mach cone: the equivalent of a sonic boom, but for light.To make an optical Mach cone, a pulse of light would need to be traveling faster than the waves it’s emitting can propagate forward.

The Keck Observatory just delivered these exoplanet beauty shots by redirecting starlight into the eye of an optical storm

The Keck Observatory just delivered these exoplanet beauty shots by redirecting starlight into the eye of an optical storm Instead of obstructing photons, the vortex coronagraph “redirects” them away from the camera “using a technique in which light waves are combined and canceled out.” Dmitri Mawet, who developed the vortex coronagraph, compares the process with what happens at the eye of a storm.