SPACE-TIME FUZZINESS, the notion that space is like an irregular foam at the smallest of size scales (the Planck scale, 10^-35 m) foreseen in current theories, should be detectable with gravity-wave detectors now under construction. So says Giovanni Amelino-Camelia of CERN, who believes that high-precision instruments like the Laser Interferometer Gravitational Observatory (LIGO), being built to detect the infinitesimal distortions of space caused by a passing gravitational wave, would also be able to probe the fundamental "noise" of the Planck froth. (Nature, 18 March 1999.)