... a dozen or so new comets; in addition, a dozen or more comets that are already known ... comet in 1066 was a portent of doom; for Duke William and the Normans, the same comet ...
... In December he had discovered another, much fainter comet, and on that chilly January evening he discovered what was to become the brightest comet to visit our evening skies since comets Arend- Roland and Mrkos in 1957. ...
... entered what comet expert John Brandt of NASA has called "the golden year of comet ... comet and study the nucleus (the dirty snowball, just a few miles across which is ...
... The Comet About to Smash into Jupiter .. ... Comet Shoemaker-Levy 9 will enter Jupiter's atmosphere at about 60 kilometers per second. which would be about 180 times the ...
... Astronomy, Feb. 1995, p. 68. Hale, A. Everybody's Comet: A Layman's Guide to Comet Hale-Bopp. 1996. ... 1994. Plenum Press. Personal story of comet discovery and comet science by an amateur astronomer who has found many comets. ...
... 7 . Echoes of the Past, by Katherine Bracher . The ancient Greeks invented the word comet , yet they seem to have done little comet-viewing. 8 . ...
... comet and our solar system at the time of Giotto 's close encounter with the comet ... comet, while the Earth was a rocky ball about 35 meters wide also about 500 km from ...