The hypothetical faster-than-light particle known as the tachyon may marry with the special theory of relativity, according to a team of physicists, making its existence more plausible. Tachyons are a ...

On this day in 1905 Albert Einstein published his paper introducing special relativity in a German physics journal. Entitled “On the Electrodynamics of Moving Bodies,” the paper introduced key ideas ...

For the first time, physicists have demonstrated a phenomenon known as the Terrell-Penrose effect, which causes an object moving close to the speed of light to warp before our eyes. The new findings, ...

Albert Einstein won the 1921 Nobel Prize in Physics, but not for relativity—the theory that made him famous. This article ...

Time dilation. Length contraction. The fact that time moves faster at your face than it does at your feet. These are all experimentally verified consequences of the Special Theory of Relativity, ...

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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 ...