Anyone who wants to know what events transpired between 1991 and 1995 under the watchful eye of the National Aeronautics and Space Administration will find this book an invaluable tool. Here are just a couple of the thousand of samples through the book. March 27 1991 A solar flare, a strong release of energy from a small area of the sun, created the most inetnse geomagnetic storm on Earth since 1989. Such events increase radiation levels near Earth and affect electrical power systems, satellites, space missions, and communications and navigation systems. April 9 1992 Astronomers using the Hubble Space Telescope announced that they had spotted the gathering of swirling stars that is believed to be the gravitational signature of a black hole in a galaxy called M32. Todd R. Lauer of the National Optical Astronomy Observatries in Tucson, Arizona, and a scientist using the Hubble, said that based upon what he has seen so far, I would be surprised if M32 turns out not to be a black hole. Concurrently, the Compton Gamma Ray Observatory discovered 11 objects in space that constitue a new class of objects the gamma ray quasar.Ó The new gamma ray quasars, some as far as 10 billion light-year away, are probably similar to the thousands of other quasars detected in recent years, but the nature of quasars is still debated.

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