Number 86 (Story #1), June 26, 1992 by Phillip F. Schewe and Ben Stein THE YOKHOH X-RAY SATELLITE has by now recorded more detailed images (including motion pictures) of the Sun's x-ray activity than any previous solar mission. The Japanese satellite, launched 8 months ago, has studied, for example, the nature of x-ray emitting flares, observing that some powerful flares eject huge amounts of material, comparable in mass to that of the charged particles thrown out as solar wind. (Science News, 20 June 1992.)