Malleability of Spacetime

Malleability of Spacetime, as set forth in Einstein's general relativity theory, has been affirmed, once again, by watching radio waves from the Cassini spacecraft, on its way toward Saturn, be deflected by the sun. Einstein said that a massive object would distort the fabric of spacetime in its vicinity, and that this distortion would slightly redirect the trajectory of light waves passing the object. Scientists from three Italian universities (those of Pavia, Rome, and Bologna) have carefully scrutinized Cassini's radio report and found that the observed light deflection is in accordance with the conventional form of relativity. Furthermore, the sensitivity of their measurements is at a level where some alternative gravity models can be probed for veracity. (Bertotti et al., Nature, 25 November 2003.)