* Astronomy

A new research by scientists has provided insights about the lifestyle and origins of the mysterious Lapita people, ancestors of the present Polynesians and Melanesians. The research began after construction workers unearthed 60 skeletons at Teouma, an archaeological site on Éfaté Island, in...

ATel 9560: ASASSN-16kv: Discovery of A Probable Supernova in 2MASX J05073951-1932539

Asteroid 19204 Joshuatree was discovered on the 2nd June 1992 by J. E. Mueller at Palomar. Joshua Tree National Park was founded in 1936 as Joshua Tree National Monument largely through the efforts of Minerva Hoyt (1866-1945). It became a national park in 1994. It is known for the Joshua Tree (Yucca b...

Title: ALMA view of the Galactic Center 50km/s molecular cloud Author: Kenta Uehara, Masato Tsuboi, Yoshimi Kitamura, Ryosuke Miyawaki, Atsushi Miyazaki We have observed the Galactic Center 50km/s molecular cloud (50MC) with ALMA to search for filamentary structures. In the CS J=2-1 emission...

Title: Kepler Observations of the Asteroseismic Binary HD 176465 Author: T. R. White, O. Benomar, V. Silva Aguirre, W. H. Ball, T. R. Bedding, W. J. Chaplin, J. Christensen-Dalsgaard, R. A. Garcia, L. Gizon, D. Stello, S. Aigrain, H. M. Antia, T. Appourchaux, M. Bazot, T. L. Campante, O. L. Creevey,...

Title: Stability of a Light Sail Riding on a Laser Beam Author: Zachary Manchester, Abraham Loeb (Harvard) The stability of a light sail riding on a laser beam is analyzed both analytically and numerically. Conical sails on Gaussian beams, which have been studied in the past, are shown to be unstabl...

The Walnut Hill (ordinary chondrite) meteorite fell in Maine, USA, in October 1978. A total mass of 220 g was recovered. 43° 49' 37"N, 70° 14' 50"W

ATel 9583: Spectroscopic Classification of SN 2016grz as a Young Type Ia Supernova

Alan Turing papers on code breaking released by GCHQ Two 70-year-old papers by Alan Turing on the theory of code breaking have been released by the government's communications headquarters, GCHQ. It is believed Mr Turing wrote the papers while at Bletchley Park working on breaking German Enigma...

Title: XMM-Newton observations of the TeV BL Lac object PKS 2155--304 in 2006: signature of inverse Compton X-ray emission? Authors: Y.H. Zhang (Tsinghua) This paper reports the first discovery of possible inverse Compton (IC) X-ray emission below 10 keV in the typical high-energy peaked BL Lac...

The Lodran (Lodranite) meteorite fell in Punjab, Pakistan, on the 1st October, 1868. A total mass of 1000 g was recovered. 29° 32'N, 71° 48'E

ATel 9577: OAUNI photometry of ASASSN-16hw

Polish Explorer Says He's Found Deepest Underwater Cave A team of explorers say they have discovered the world's deepest underwater cave, 404 meters down, near the eastern Czech town of Hranice. Polish explorer Krzysztof Starnawski found the cave Tuesday in the flooded limestone Hranicka Propa...

Title: William Pendry Bidelman (1918-2011) Author: Howard E. Bond (Pennsylvania State Univ.) William P. Bidelman--Editor of Publications of the Astronomical Society of the Pacific from 1956 to 1961--passed away on 2011 May 3, at the age of 92. He was one of the last of the masters of visual stellar...

Title: The origin and 9:7 MMR dynamics of the Kepler-29 system Author: Cezary Migaszewski, Krzysztof Gozdziewski, Federico Panichi We analyse the Transit Timing Variation (TTV) measurements of a~system of two super-Earths detected as Kepler-29, in order to constrain the planets' masses and o...