An illustration conveying the idea of a space-based quantum internet, which would seem, like the hypothetical particle of a tachyon, to outpace light. An illustration ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The Vienna team stitched together slices of light to create snapshots. At rest (left), the cube ...

We break down Einstein's famous twin paradox to illustrate time dilation in special relativity. Discover how acceleration, ...

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Bell Inequalities, Relativity, and the Qubit, by William Stuckey, Michael Silberstein and Timothy McDevitt, Oxford University ...

When an object moves extremely fast – close to the speed of light – certain basic assumptions that we take for granted no longer apply. This is the central consequence of Albert Einstein's special ...

Faster-than-light travel is impossible according to our current understanding of physics. Wormholes are theoretically possible but require unstable, exotic matter to stabilize. Generation ships are a ...

E=mc2. We've all seen this equation once in our lives; it's associated with Albert Einstein, physicist and figure of genius of the 20th century. But unless we're interested in physics, do we really ...

Newton's theory of gravity posited instantaneous gravitational attraction, successfully predicting planetary orbits. Einstein's special relativity challenged this, necessitating the development of ...

Using ultra-fast laser pulses and special cameras, scientists have simulated an optical illusion that appears to defy Einstein's theory of special relativity. One consequence of special relativity is ...