* Astronomy

Herman Potocnik (December 22, 1892 - August 27, 1929) was an Austro-Hungarian rocket engineer and pioneer of cosmonautics (astronautics). He is chiefly remembered for his work addressing the long-term human habitation of space. Read more

Srnivasa Aiyangar Ramanujan FRS, better known as Srinivasa Iyengar Ramanujan (22 December 1887 - 26 April 1920) was a Indian mathematician and autodidact who, with almost no formal training in pure mathematics, made extraordinary contributions to mathematical analysis, number theory, infin...

Grote Reber (December 22, 1911 - December 20, 2002) was an amateur astronomer and pioneer of radio astronomy. He was instrumental in investigating and extending Karl Jansky's pioneering work, and conducted the first sky survey in the radio frequencies. His 1937 radio antenna was the second ever t...

Yuri Ivanovich Malenchenko (born December 22, 1961) is a Ukrainian-Russian cosmonaut. Malenchenko became the first person to marry in space, on 10 August 2003, when he married Ekaterina Dmitrieva, who was in Texas, while he was 240 miles over New Zealand, on the International Space Station. Read...

Title: Blue Compact Dwarf Galaxies with Spitzer: The Infrared/Radio Properties Authors: Yanling Wu, V. Charmandaris, J.R. Houck, J.Bernard-Salas, V.Lebouteiller, B.R. Brandl, D. Farrah We study the correlation between the radio, mid-infrared and far-infrared properties for a sample of 28...

Orbital elements: 2011 AG5 PHA, Earth MOID = 0.0003 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 337.76377 (2000.0) P Q n 0.53492647 Peri. 53.11731 -0.99064248 +0.12754547 a 1.5029343 Node 134.15340 -0.13648246 -0.92538819 e 0.4229673 Incl. 3.88212 -0.00014768 -0.35691575 P 1.84 H 22.0 G 0.15 U...

The Dongzhì Festival or Winter Solstice Festival (Chinese: "the Extreme of Winter") is one of the most important festivals celebrated by the Chinese and other East Asians during the Dongzhi solar term (winter solstice) on or around December 22 when sunshine is weakest and daylight sho...

Orbital elements: 2012 YS1 Earth MOID = 0.0087 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 308.54458 (2000.0) P Q n 0.39372493 Peri. 77.70025 -0.97084736 -0.20413082 a 1.8436314 Node 90.42231 +0.14005575 -0.90847427 e 0.6120662 Incl. 7.21805 +0.19452450 -0.36469866 P 2.50 H 25.0 G 0...

Orbital elements: 2012 YQ1 PHA, Earth MOID = 0.0072 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 313.25563 (2000.0) P Q n 0.34714594 Peri. 41.98731 -0.94978965 -0.30308574 a 2.0050629 Node 120.21313 +0.25778583 -0.89876086 e 0.5660178 Incl. 5.15924 +0.17733043 -0.31680901 P 2.84 H 2...

Orbital elements: 2012 YR1 Earth MOID = 0.0010 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 339.24101 (2000.0) P Q n 0.33771941 Peri. 341.91902 +0.45013623 -0.89188699 a 2.0422020 Node 81.30926 +0.82464287 +0.39639915 e 0.5278904 Incl. 2.53724 +0.34255147 +0.21772760 P 2.92 H 26.6 G...

How white dwarfs mimic black holes A remarkable observation by astronomers from the University of Southampton has been published in one of the world's foremost astrophysics research journals. The research by Professor Phil Charles, Professor Malcolm Coe and postgraduate student Liz Bartlett...

Graeme Bryce Segal FRS (born 21 December 1941) is a British mathematician, and professor at the University of Oxford. His thesis was in the area of equivariant K-theory and the Atiyah-Segal completion theorem in that subject was a major motivation for the Segal conjecture, which he formulated. He...

Rondane National Park (Norwegian: Rondane nasjonalpark) is the oldest national park in Norway, established on 21 December 1962. The park contains ten peaks above 2,000 metres, with the highest being Rondslottet at an altitude of 2,178 m. The park is an important habitat for herds of wild reindeer...

Orbital elements: 2012 YN1 Earth MOID = 0.1340 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 285.31808 (2000.0) P Q n 0.72958204 Peri. 20.59949 -0.30335034 -0.83521096 a 1.2220434 Node 89.43276 +0.79742021 -0.48603075 e 0.0906524 Incl. 27.30439 +0.52163166 +0.25728733 P 1.35 H 23.6 G...

Orbital elements: 2012 YO1 PHA, Earth MOID = 0.0422 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 341.60591 (2000.0) P Q n 0.40561866 Peri. 312.48467 +0.74981996 -0.59090350 a 1.8074131 Node 85.94830 +0.66002013 +0.63653256 e 0.4856637 Incl. 17.36204 +0.04629754 +0.49564034 P 2.43 H...