Gamma ray bursts such as Swift J1644+57 occasionally turn out to be “disruption events” named for this phenomenon that occur near supermassive black holes. The heating rate due to this process is proportional to a body’s second-order Love number. (10[1])This phenomenon between interacting galaxies generates the “tails” in the Tadpole and Antenna galaxies. This phenomenon is primarily responsible for hypothetical “eyeball planets.” The strength of this phenomenon has an inverse cubic dependence on distance and exceeds a body’s internal gravitational binding beyond the Roche (“rohsh”) limit. (10[1])Satellites whose rotational period equals their orbital period exhibit a “locking” named for this phenomenon. For 10 points, name this phenomenon that causes sea levels to oscillate due to the position of the moon. ■END■