News tagged with speed of light

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Flipping a photonic shock wave

A team of physicists has directly observed a reverse shock wave of light in a specially tailored structure known as a left-handed metamaterial. Although it was first predicted over forty years ago, this is ...

Nov 02, 2009 4.2 / 5 (5) 1

Dissecting a stellar explosion

(PhysOrg.com) -- Integral has captured one of the brightest gamma-ray bursts ever seen. A meticulous analysis of the data has allowed astronomers to investigate the initial phases of this giant stellar explosion, ...

Apr 03, 2009 4.5 / 5 (6) 0

Astrophysicists explore a blazar

An international team of astrophysicists using telescopes on the ground and in space have uncovered surprising changes in radiation emitted by an active galaxy. The picture that emerges from these first-ever ...

Mar 18, 2009 4.4 / 5 (17) 5