'In 1986 Giotto, a craft launched by the European Space Agency, got within 335 miles of this comet's nucleus'
Halley\'s Comet
THE UNIVERSE: In 1986 Giotto, a craft launched by the European Space Agency, got within 335 miles of this comets nucleus
In 1986 Giotto, a craft launched by the European Space Agency, got within 335 miles of this comet's nucleus
In 1986 Giotto, a craft launched by the European Space Agency, got within 335 miles of this comet's nucleus
THE UNIVERSE
Halley\'s Comet
THE UNIVERSE