Around the sun leaving a bright trail behind. For more than

Until the warming is more severe

Dr. Paul Heaton and Dr. David Parker of the Meteorological Office gathered together temperature records from about 1000 different locations spread across every continent and compared them with the average for those places from 1951 to 1990. The research also included temperatures measured on ships. The scientists found 1989 was 0.23⁰C above the 1951-80 average, and 1988 was 0.31 above. They agree with American researchers that the warmest years during this century were the eighties, and the tendency may be for the nineties to be even hotter!

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COMETS
from Illustrated London News, 1985

There can be few people who have not heard of comets, but there are still a great many non-scientists who have no real idea of what a comet is. The most popular mistake is to assume that a comet streaks across the sky and disappears in a few seconds. In fact, all comets are very distant - far beyond the top of the earth's atmosphere - and you cannot see them moving. If you ~see an object moving visibly, it certainly cannot be a comet. It will be either an artificial satellite, thousands of which have been launched since the Space Age opened with Russia S Sputnik 1 in October, 1?57, or else a meteor. Of course, it can also be a weather balloon or a high-flying aircraft.

Comets belong to the Sun's family, or solar system, but they are quite unlike planets. They are not solid and rocky; a comet