... are very close to the orbits of nonperiodic comets , which start very far away ... proposal made around then by Halley (of comet fame) to use such rare transits (last ...
... 1949--Britain puts the first jet airliner into service, the Comet. ... Russia's Vega 1 flies past Comet Halley, after dropping French balloon experiment on ... 14 March--Europe's Giotto flies past Comet Halley. ...
... Venus was found to be unmagnetized: the solar wind is only stopped by its upper atmosphere, the ionosphere, creating a completely different type of magnetosphere, more like a comet's tail. ...
... On September 29, 2004, Toutatis will pass by Earth at a range of four times the distance between the Earth and the Moon, the closest approach of any known asteroid or comet between now and 2060. ...
... 1949 --Britain puts the first jet airliner into service, the Comet. ... 1985 --An "artificial comet" is produced by a cloud of barium ions, released by the German IRM (Ion Release Module) satellite ...
... What are comet tails made of? . If light speed sets the limit, why fly into space? ... the solar system of dust particles from comets--the ones large enough not to be ...