A sergeant in Iraq gets caught in an explosion and is rushed to a surgical tent in the desert to stop the bleeding and remove shrapnel; but by the time he arrives at a hospital in the U.S., a far more menacing problem brews from beneath the surface.

Animals are loyal companions and many are a feast for the eyes; discover a wealth of creatures than humans have redesigned solely to charm and enrich our lives.

Near Earth, many galaxies are clustered together like soap bubbles; will these bubbles continue expanding far into the universe?; using the Hubble Space Telescope, scientists at the frontline of space exploration search for the answer.

For the first time, Geoff and Steve make the journey to Russia in search of one of the rarest and most valuable meteorites on the planet, the Dronino ataxite.

Featured: pipes; rock climbing gear; leather bike saddles; luxury sports cars.