The Momose Group, in collaboration with the Chemistry EES and MES shops, has achieved the magnetic trapping of CH3 radicals in a vacuum chamber. After six years of development of a “coil gun” type magnetic molecular decelerator, they have successfully reduced the translational velocity of the radicals in a supersonic molecular beam from 340 m/s to < 20 m/s and confined some 50 000 radicals in a volume of 1 mm^3 between two permanent magnets for longer than 1 sec. The temperature of the radicals in the trap was <200 mK. The ability to trap important reaction intermediates such as CH3...