Astronomers have detected a gargantuan blast of energy from space that appears to be doing the impossible: Traveling seven times faster than the speed of light. This is, of course, an optical illusion ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

The light echo around the star V838 Monocerotis as seen by the Hubble Space Telescope in November 2005. When I was a teenager, I was—shockingly, I know—deeply nerdy. At a science-fiction convention, I ...

Astrophysicists Jon Hakkila of the College of Charleston and Robert Nemiroff of the Michigan Technological University have published research indicating that blasts that create gamma-ray bursts may ...

The fact that the speed of light is constant is one of the cornerstones of physics. Nothing carrying information can travel faster than the speed of light, but by playing with geometries physicists ...

Find out how traveling faster than light and traveling back in time are the same thing. By choosing the right path and the right reference frames, any superluminal motion can lead to information or ...

Geraint Lewis receives funding from the Australian Research Council. The story of the drawn-out development of Albert Einstein’s revolutionary rewrite of the laws of gravity has been told many times, ...

Blasts that create gamma-ray bursts may actually exceed the speed of light in surrounding gas clouds, but do so without violating Einstein's theory of relativity. Astrophysicists Jon Hakkila of the ...