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Full Moon (22:22 MST).
Full Moon (22:22 MST).
Sep 1 all-day
Full Moon (22:22 MST).
Full Moon. Rises at sunset, high in the sky around midnight. Visible all night. Moon overview on solarsystem.nasa.gov
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New Moon (04:00 MST).
New Moon (04:00 MST).
Sep 17 all-day
New Moon (04:00 MST).
By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely in shadow then. Pictured here is the traditional New Moon, the earliest visible Continue reading →
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J. W. Geiger died, 1945 (b. 1882).
J. W. Geiger died, 1945 (b. 1882).
Sep 24 all-day
J. W. Geiger died, 1945 (b. 1882).
Johannes Wilhelm “Hans” Geiger (/ˈɡaɪɡər/; German: [ˈɡaɪɡɐ]; 30 September 1882 – 24 September 1945) was a German physicist. He is best known as the co-inventor of the detector component of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus. He was the brother of meteorologist and climatologist Rudolf Geiger. Geiger was Continue reading →
Jupiter 1.6°N of Moon (23:46 MST).
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R. E. Hills born, 1945.
R. E. Hills born, 1945.
Sep 30 all-day
R. E. Hills born, 1945.
Richard Edwin Hills FRS FRAS is emeritus professor of Radio Astronomy at the University of Cambridge. Born on 30 September 1945 and educated at Bedford School, Hill studied the Natural Science Tripos at Queens’ College, Cambridge and then went to the University of California, Berkeley to complete his Doctor of Philosophy degree. Hills was a research Continue reading →

The Vela Supernova Remnant, by Robert Gendler and Roberto Colombari, USA. This type II supernova remnant is the result of an explosion about 12,000 years ago in the constellation Vela.