The implications of the personal genetic profile; a visit to a Texas algae farm; a journey deep beneath the Arctic Ocean; a profile of roboticist Yoky Matsuoka.

The implications of the personal genetic profile, which will predict a person's chances of contracting one of several serious diseases; a visit to a Texas algae farm, where researchers are creating tailor-made algae cells to coax the fuel they want out of these little organisms, which just may be our biofuel future; scientists on an unprecedented journey to Gakkel Ridge, deep beneath the Arctic Ocean, which may help scientists determine if Europa, one of Jupiter's many moons, could host life; and a profile of roboticist Yoky Matsuoka.