哈雷慧星 英文简介用英文来介绍 不用太累赘的 呵呵 谢谢高手 大虾们
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/04/30 13:40:31
哈雷慧星 英文简介
用英文来介绍 不用太累赘的 呵呵 谢谢高手 大虾们
用英文来介绍 不用太累赘的 呵呵 谢谢高手 大虾们
Halley's comet
Halley's comet is named after Edmond G. Halley who was the first to suggest that comets were natural phenomena of the solar system, in orbit around the Sun. He suggested that a certain comet was a regular visitor, returning every 76 years, and was, in fact, the same one which had been observed since 240 BC, but in particular in the years 1531, 1607, and 1682, dates which for him were recent history. In 1682 he predicted the comet would return again in 1758, and sure enough, the comet arrived in March 1759. Halley's comet made a particularly bright appearance in 1910. It also was recorded in a famous ancient tapestry after its 1066 appearance.
For hundreds of years humankind has wondered what the nucleus of Halley's comet was really like. This wonderful picture from the Giotto spacecraft gives us the answer. In this picture, the Sun is on the left. Three jets can be seen blowing molecules toward the Sun. A crater can also be seen in the middle right. This image shows that evaporation occurs along specific portions of the comet. Data taken by a suite of spacecraft suggests that the comet is mostly made of ice.
Halley's comet is named after Edmond G. Halley who was the first to suggest that comets were natural phenomena of the solar system, in orbit around the Sun. He suggested that a certain comet was a regular visitor, returning every 76 years, and was, in fact, the same one which had been observed since 240 BC, but in particular in the years 1531, 1607, and 1682, dates which for him were recent history. In 1682 he predicted the comet would return again in 1758, and sure enough, the comet arrived in March 1759. Halley's comet made a particularly bright appearance in 1910. It also was recorded in a famous ancient tapestry after its 1066 appearance.
For hundreds of years humankind has wondered what the nucleus of Halley's comet was really like. This wonderful picture from the Giotto spacecraft gives us the answer. In this picture, the Sun is on the left. Three jets can be seen blowing molecules toward the Sun. A crater can also be seen in the middle right. This image shows that evaporation occurs along specific portions of the comet. Data taken by a suite of spacecraft suggests that the comet is mostly made of ice.
哈雷慧星 英文简介用英文来介绍 不用太累赘的 呵呵 谢谢高手 大虾们
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