20 November
1889: On 20 November 1889, Edwin Powell Hubble was born.Hubble was an American astronomer who is considered the founder of extragalactic astronomy and who provided the first evidence of the ...
27 FÉVR. 2004
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885
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1993: On 21 November 1993, Bruno Rossi died.
Rossi was an Italian pioneer in the study of cosmic radiation. In the 1930s, his experimental investigations of cosmic rays and their interactions with matter laid the foundation for high-energy particle physics. Cosmic rays are atomic particles that enter Earth's atmosphere from space at speeds approaching that of light, bombarding atmospheric atoms to produce mesons as well as secondary particles possessing some of the original energy.
He was one of the first to use rockets to study cosmic rays above Earth's atmosphere. Finding X-rays from space he became the 'grandfather' of high-energy astrophysics, being largely responsible for starting X-ray astronomy, as well as the study of interplanetary plasma.
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19 November
1918: On 19 November 1918, Hendrik Christoffel van de Hulst was born.Van de Hulst was a Dutch astronomer who predicted theoretically that 21-centimetre radio waves were produced by interstellar hydrogen ...
18 November
1923: On 18 November 1923, Alan Shepard, Jr. was born.Shepard was America's first man in space and one of only twelve humans who walked on the Moon. Named as one ...
17 November
1995: On 17 November 1995, ESA's ISO mission was launched by an Ariane 44P launcher from Europe's spaceport in Kourou, French Guiana.Probing the cool and hidden Universe, the Infrared Space ...
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