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Revisiting Comet Halley
2012-11-26 10:52:46

Comet Halley, the originator of the Orionids meteor shower that lit up our skies last month – as they do every October – is seen here up close by ESA’s Giotto probe as it flew past the famous comet on 13–14 March 1986.


Latest Giotto Reference Libraries

6_348877a21702e82deaef967e7029f7ad2
2004-10-19 04:45:41

Comet -- A comet is a small body from the outer reaches of the solar system similar to an asteroid but composed of ice. Often described as "dirty snowballs," they are composed largely of carbon dioxide ice, methane ice, and water ice with a mixture of dust and small stony aggregates mixed in. Comets are thought to be small pieces of debris left over from the formation of the solar system, representing a sample of the original composition of the nebula that condensed to form the Sun and all...

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Word of the Day
gubbings
  • The parings of haberdine; also, any kind of fragments.
The word 'gubbings' is a variant of the word 'gobbon', meaning 'a portion, gobbet.'