November 25, 2021 Today in 1960, the first atomic reactor for research and development began operation at Richland, Washington. The plant was built to determine the suitability of plutonium as a reactor fuel. There was a need to recycle plutonium resulting from weapons production. Plutonium would go on to be used as a power source… Continue reading
Astronomy Fact of the Day: November 23, 2021
November 23, 2021 Today in 1948, the first US patent for a lens to provide zoom effects for television cameras was issued to F.G. Back. His Zoomar lens was adjustable for closeups or long-distance shots without requiring the camera be moved toward or away from the object televised. Similar zoom lenses have a wide variety… Continue reading
Astronomy Fact of the Day: November 21, 2021
November 21, 2021 Today in 1783, the first free flight carrying a human occurred in Paris, France in a hot air balloon made of paper and silk. The balloon carried two men, Jean François Pilâtre de Rozier and the Marquis Francois Laurant d’Arlandes, to an altitude of at least 500 feet and traveled about six… Continue reading
Astronomy Fact of the Day: November 19, 2021
November 19, 2021 Today in 1956, American astronaut Eileen Collins was born. Collins served as the first woman shuttle pilot on STS-63 (Feb 3-11, 1995) which included a rendezvous with the Russian Space Station Mir, and also STS-84 (May 15-24, 1997). On her third space shuttle flight, STS-93 (Jul 22-27, 1999), which deployed the Chandra… Continue reading
Astronomy Fact of the Day: November 17, 2021
November 17, 2021 Tonight into early tomorrow morning, the annual Leonid Meteor Shower will peak. The Leonids are produced by dust grains left behind by comet Tempel-Tuttle. While typically an average shower producing only 15 meteors per hour at its peak, the Leonids have a cyclonic peak every 33 years where hundreds of meteors per… Continue reading
Astronomy Fact of the Day: November 15, 2021
November 15, 2021 Today in 1988, the Soviet Union launched its first space shuttle, Buran (“Snowstorm”), on its first and only orbital flight. The unmanned flight was limited to two orbits lasting 206 minutes before reentry and a safe automatic touchdown at Tyuratum. The program’s funding was cut and the program eventually canceled in 1993.… Continue reading
Astronomy Fact of the Day: November 13, 2021
November 13, 2021 Today in 1971, Mariner-9, the first man-made object to orbit another planet, entered Martian orbit. The mission of the unmanned craft was to return photographs mapping 70% of the surface, and to study the planet’s thin atmosphere, clouds, and hazes, together with its surface chemistry and seasonal changes. Orbital view of Olympus… Continue reading
Astronomy Fact of the Day: November 11, 2021
November 11, 2021 Today in 1966, Gemini 12 was launched from Cape Canaveral, with astronauts Edwin “Buzz” Aldrin and James Lovell aboard. This last flight of the Gemini program tested rendezvous methods and extravehicular activities (EVAs, or ‘spacewalks’) in preparation for the start of the final push to the Moon: the Apollo Program. A ‘play-by-play’… Continue reading
Astronomy Fact of the Day: November 9, 2021
November 9, 2021 Today in 1934, Carl Sagan was born. Sagan was an American astronomy and science communicator who helped to popularize space science through the 13-pat television series “Cosmos: A Personal Voyage.” Learn more about Carl Sagan and his contributions to astronomy here. Carl Sagan unveils the iconic Pale Blue Dot image at a… Continue reading
Astronomy Fact of the Day: November 7, 2021
November 7, 2021 Today in 1631, Pierre Gassendi made the first observation of Mercury transiting the Sun. He observed the transit by projecting the Sun’s image on a screen of paper. He recorded this in Mercurius in sole visus (1632; Mercury in the Face of the Sun) as support for the new astronomy of Johannes… Continue reading