Kepler-452b revolves around a sun much like our own.
January 26, 1987|
Nothing in recent developments in the Soviet Union has been as exciting and pleasing as the release of Andrei Sakharov after nearly seven years in exile. His return was long overdue, and the exile (which was illegal even by Soviet standards) was entirely unnecessary. It cost dearly the health of Sakharov and his wife, Yelena Bonner, and inevitably damaged scientific cooperation between the East and West. I have known Sakharov since the summer of 1964, when he made his short but strong speech at