* Astronomy

Orbital elements: 2013 KB2 Earth MOID = 0.0436 AU Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC M 346.42642 (2000.0) P Q n 0.63804847 Peri. 355.92851 -0.69797395 +0.71470527 a 1.3362886 Node 229.79926 -0.65535341 -0.66283540 e 0.2121256 Incl. 3.38077 -0.28869409 -0.22326130 P 1.54 H 24.2 G...

Orbital elements: 2013 KS1 Earth MOID = 0.0063 AU Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC M 318.34416 (2000.0) P Q n 0.54510170 Peri. 62.62010 +0.40670258 +0.91323208 a 1.4841724 Node 231.39916 -0.84885873 +0.36785014 e 0.3888269 Incl. 1.79636 -0.33768605 +0.17519543 P 1.81 H 26.8 G 0...

Orbital elements: 2013 KQ1 Earth MOID = 0.0164 AU Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC M 348.41145 (2000.0) P Q n 0.43669159 Peri. 8.28914 -0.59939945 +0.79995663 a 1.7206247 Node 224.88974 -0.73666312 -0.56502731 e 0.4038130 Incl. 2.28200 -0.31312576 -0.20202356 P 2.26 H 26.8 G 0....

Orbital elements: 2013 KT1 Earth MOID = 0.0067 AU Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC M 198.94449 (2000.0) P Q n 1.11714391 Peri. 318.70889 +0.94673667 -0.29777442 a 0.9198774 Node 59.01262 +0.31999963 +0.82757231 e 0.1641504 Incl. 8.21913 +0.03591537 +0.47587232 P 0.88 H 26.5 G 0...

IAU Symposium 298: Setting the Scene of Gaia and LAMOST - The Current and Next Generations of Surveys and Models Lijiang, China 20th May, 2013

IAU Symposium 297: The Diffuse Interstellar Bands Haarlem, The Netherlands 20th May, 2013

Title: The detonating meteor of September 5, 1916 Authors: Martin, H. H. The detonating meteor of September 5, 1916, as observed at Fort Worth Texas (Lat 32° 43' N. Long. 97° 15' W.) The meteor burst into view at 8:05:50 PM (7h 36m 50s astronomical day) from a point at 48° altitude, and 282° azimuth. It p...

In 526 during late May, probably between the 20th and the 29th, a major earthquake hit Syria and Antioch in the Byzantine Empire, killing approximately 250000 people. Read more

The Battle of Dun Nechtain or Battle of Nechtansmere (Scottish Gaelic: Blàr Dhùn Neachdain, Old Irish: Dún Nechtain, Old Welsh: Linn Garan, Old English: Nechtansmere) was fought between the Picts, led by King Bridei Mac Bili, and the Northumbrians, led by King Ecgfrith on 20 May 685. Read more

Title: The Great Detonating Meteor of November 23, 1877 Authors: G. L. TUPMAN Having fully discussed the whole of the accounts of the great meteor that have reached me, consisting of some ninety direct communications and forty or fifty newspaper cuttings, I have the pleasure to forward to NATURE a c...

Thomas Dale Akers (born May 20, 1951 in St. Louis, Missouri, U.S.) is a former astronaut in the United States Space Shuttle program. Read more

Reginald Joseph Mitchell CBE, FRAeS, (20 May 1895 - 11 June 1937) was a British aeronautical engineer, best known for his design of the Supermarine Spitfire. Read more

Alexei Andreyevich Tupolev (May 20, 1925 - May 12, 2001) was a Soviet aircraft designer who led the development of the first supersonic passenger jet, the failed Tupolev Tu-144. He also helped design the Buran space shuttle and the Tu-2000, which has been suspended because of the lack of funds. Read...

Pioneer Venus consisted of two spacecraft to study Venus: the Orbiter and the Multiprobe. The latter separated into 5 separate vehicles near Venus. The Orbiter was launched on the 20 May 1978 from the Kennedy Space Center aboard an Atlas-Centaur rocket. It went into orbit around Venus on 4 December...

ILS International Launch Services (ILS) and Telesat, the worlds fourth largest fixed satellite services operator, announced a contract today for the launch on an ILS Proton of Telesats recently ordered Telstar 14R satellite. Telstar 14R is under construction by Space Systems/Loral in Palo Alt...