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The year 1933 in science and technology had many significant events, including those listed below.

1 Astronomy

• Walter Baade and Fritz Zwicky invent the concept of neutron star, a new type of celestial object. They suggest that supernovae might be created by the collapse of a normal star to form a neutron star.

2 Births

• January 6 - Oleg Makarov (d. 2003), cosmonaut
• September 10 - Yevgeny KhrunovYevgeni Vassilyevich Khrunov ( Russian: ; September 10, 1933 May 19, 2000) was a Soviet cosmonaut who flew on the Soyuz 5 mission. He was born in Prudy. After leaving the space programme in 1980 he was appointed to the Chief State Committee for foreign ec (d. 2000See also Other events of 2000 List of years in science. 1999 in science 2000 in science 2001 in science. The year 2000 in science and technology consisted of many events, some of which are included below. Astronomy and space exploration April 7 Mars Odyss), cosmonaut

3 Deaths