Approaching a black hole unleashes extreme tidal forces, stretching and tearing apart matter, including planets like Earth, a ...
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Einstein was right: Mars has its own clock and it runs faster
Time on Mars does not match time on Earth, and the difference is no longer a thought experiment. Precision calculations now show that clocks on the red planet tick measurably faster, confirming a ...
Albert Einstein’s 1950 letter to Robert S. Marcus, written after the death of Marcus’s son, contains one of his most reflective statements on human interconnectedness. In it, he describes the belief ...
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