11 March 2011
Twenty-five years ago, ESA made its mark in deep space. A small spacecraft swept to within 600 km of Halley's comet. The Giotto probe was nearly destroyed by the encounter but what it saw changed our picture of comets forever.
More at:
http://www.esa.int/SPECIALS/Rosetta/SEMMA0YTVKG_0.html (http://www.esa.int/SPECIALS/Rosetta/SEMMA0YTVKG_0.html)