Contents

22 December 1995
Vol 270, Issue 5244

About The Cover

Artist's conception of supercooled atoms in an exotic phase of matter called the Bose-Einstein condensate, which is Molecule of the Year for 1995. Each of the atoms in the condensate (in blue) has the same quantum mechanical wave function, and so they all move as one. Atoms outside the condensate move faster and in all directions. See Editorial on 1901 and Molecule of the Year section beginning on 1902a. [Illustration: Steve Keller]