16 July
2000: On 16 July 2000, the first pair of the ESA Cluster flotilla blasted off aboard a Russian Soyuz rocket from Baikonur, Kazakhstan.Cluster is a collection of four spacecraft flying ...
27 FEB. 2004
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1894: On 17 July 1894, Georges Lemaître was born.
Lemaître was a Belgian astronomer and cosmologist, born in Charleroi, Belgium. He was also a civil engineer, army officer and ordained priest. In 1927, Lemaître was the first to propose the modern Big Bang theory. He said that if the Universe was expanding now, then the further back you go in the past, the Universe’s contents must have been closer together. He envisioned that at some point in the distant past, all the matter in the Universe was in an exceedingly dense state, crushed into a single object he called the 'primeval super-atom' which exploded, with all its constituent parts rushing away.
1850: On 17 July 1850, the Harvard Observatory in the United States took the first photograph of a star.
The observatory director, W.C. Bond and a Boston photographer J.A. Whipple took a daguerreotype of Vega.
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15 July
1943/1967: On 15 July 1943, Susan Jocelyn Bell Burnell was born. In 1967, she celebrated her 24th birthday by discovering the first pulsar, a rapidly spinning neutron star that sends ...
14 July
1965: On 14 July 1965, Mariner 4 flew past Mars, making the first close-up photographs of another planet. The pictures, played back from a small tape recorder over a long ...
13 July
1995: On 13 July 1995, the NASA spacecraft Galileo released a probe towards Jupiter that was to become the first Earth probe to penetrate the atmosphere of any of the ...
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