Gravitational Memory: A Key to Testing Gravity ⚡ экспресс
Original: "Gravitational Wave Memory in Beyond GR Theories"
Scientists have calculated the 'memory' of gravitational waves in an alternative theory of gravity for the first time.
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After black holes merge, spacetime forever changes its shape—that's gravitational memory. Calculated for the first time in an alternative theory of gravity, it held a surprise: deviations from Einstein are best seen in memory itself. Future detectors could use this effect to check whether the theory of gravity is 100% correct.
🎯 The signal of gravitational memory is incredibly weak: it deforms space by a billionth of an atom's size. That's why it hasn't been detected yet. But future detectors will be able to catch this ghostly trace.