  We demonstrate simultaneous deceleration and trapping of a cold atomic and
molecular mixture. This is the first step towards studies of cold atom-molecule
collisions at low temperatures as well as application of sympathetic cooling.
Both atoms and molecules are cooled in a supersonic expansion and are loaded
into a moving magnetic trap which brings them to rest via the Zeeman
interaction from an initial velocity of 375 m/s. We use a beam seeded with
molecular Oxygen, and entrain it with Lithium atoms by laser ablation prior to
deceleration. The deceleration ends with loading of the mixture into a static
quadrupole trap, which is generated by two permanent magnets. We estimate
$10^9$ trapped O$_2$ molecules and $10^5$ Li atoms with background pressure
limited lifetime on the order of 1 second. With further improvements to Lithium
entrainment we expect that sympathetic cooling of molecules is within reach.
