Title: Multiple ring nebulae around blue supergiants Authors: S. M. Chita, N. Langer, A. J. van Marle, G. Garcia-Segura, A. Heger In the course of the life of a massive star, wind-wind interaction can give rise to the formation of circumstellar nebulae which are both predicted and observed in the na...
Boris Evseyevich Chertok (1 March 1912 - 14 December 2011) was a prominent Soviet and Russian rocket designer, responsible for control systems of a number of ballistic missiles and spacecraft. He was the author of a four-volume book Rockets and People, the definitive source of information about t...
Soyuz launches sharp-eyed Pleiades satellite A Russian Soyuz rocket has launched from French Guiana - only the second such vehicle to fly out of the territory's new Sinnamary spaceport. The Soyuz put six satellites in orbit, including France's new Pleiades-1 high-resolution imaging spacecraf...
Powys fossils 'shed new light' on ocean community evolution Scientists believe they have made a remarkable discovery of fossils said to be more than 450 million years old in a disused Powys quarry. They think they are of a kind never before discovered. The well-preserved organisms from the Ordovic...
At Google, philanthropy is a core value. This year we gave more than $100 million to various organisations around the world -- including $40 million in grants that celebrate the giving season by supporting four causes that we consider particularly important: science, technology, engineering an...
The Brushy Creek Feature, a Potential Louisiana Impact Crater Between 1996 and 1997, Richard P. McCulloh, the author, and John Snead of the Louisiana Geological Survey compiled McCulloh et al. (1997). This research revealed an anomalous circular feature, which McCulloh et al. (1997) mapped as &...
The 1575 Valdivia earthquake was an earthquake in Chile that caused the subsequent flood of Valdivia much like the 1960 Valdivia earthquake caused the ensuing Riñihuazo flooding. It occurred at 14:30 local time on December 16, 1575. It had an estimated magnitude of 8.5 on the surface wave magnitud...
Orbital elements:
2011 YC Earth MOID = 0.0733 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 41.11950 (2000.0) P Q
n 0.45096441 Peri. 357.81412 +0.12019321 -0.96308798
a 1.6841258 Node 85.21758 +0.91445863 +0.01296804
e 0.3725690 Incl. 13.98718 +0.38641818 +0.26887426
P 2.19 H 24.4 G 0....
Orbital elements:
2011 YQ1 Earth MOID = 0.0025 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 45.67469 (2000.0) P Q
n 0.36620515 Peri. 127.65977 +0.82442311 -0.56518408
a 1.9348757 Node 266.77430 +0.50938770 +0.76398038
e 0.5497235 Incl. 1.71562 +0.24667937 +0.31128915
P 2.69 H 25.6 G 0...
Orbital elements: 2010 CG18 Earth MOID = 0.1260 AU Epoch 2010 Jan. 24.0 TT = JDT 2455220.5 MPC M 18.70579 (2000.0) P Q n 0.58277553 Peri. 350.41787 +0.34686354 -0.92198378 a 1.4194993 Node 79.13185 +0.87171047 +0.24917180 e 0.2181274 Incl. 10.09508 +0.34613081 +0.29641074 P 1.69 H 20.1 G 0.15 Fro...
Orbital elements:
2011 XS2 Earth MOID = 0.0855 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 70.09778 (2000.0) P Q
n 0.45727845 Peri. 99.47618 +0.72523831 +0.57821339
a 1.6685871 Node 226.39168 -0.62774379 +0.77829357
e 0.7441041 Incl. 31.07742 +0.28278460 +0.24480276
P 2.16 H 18.2 G 0...
Maxima of long period variable S Sextantis on the 16th December, 2011. Magnitude: 9.1-13.4 Period: 264.9 days Type: Mira Position (2000): 10:34:56.04 -00:20:33.5
Maxima of long period variable RS Aquarii on the 17th December, 2011. Magnitude: 10.0-14.0 Period: 214.62 days Type: Mira Position (2000): 21:10:58.12 -04:01:40.1
Maxima of long period variable S Microscopii on the 18th December, 2011. Magnitude: 9.0-13.8 Period: 209.68 days Type: Mira Position (2000): 21:26:44.09 -29:51:04.7
