Halley's comet: getting to the heart of the matter
... doesn't break up trader the impact dad portiadaa lade' It at 11*,•M Mks as our. Up to a year ago Giotto Was given a 511-50 aim. Whig destroyed, said Prof. Denis O'Sullivan, of the Dublin instatist for Advanced Studios. Bult the Glacoblisi-Zianer encounter ...