* Astronomy

Title: The Titius-Bode Law Revisited But Not Revived Authors: Ivan Kotliarov The present article gives a detailed analysis of the new formulation of Titius-Bode law by (Poveda, Lara 2008) and of the hypothesis that this law may exist in extra-solar planetary system. A thorough study of the corres...

The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) Telescope has reported the discovery of variable very high energy (VHE) gamma-ray emission from a microquasar. Microquasars are binary star systems, composed of a massive ordinar...

Title: The Search for SW Sex Type Stars Authors: Linda Schmidtobreick, Pablo Rodriguez-Gil, Boris T. Gaensicke All eclipsing nova-likes in the 2.8-4h orbital period range belong to the group of SW Sex stars, and as such experience very high mass transfer rates. Since the physical properties of a s...

Baddeleyite is a rare zirconium oxide mineral (ZrO2 or zirconia), occurring in a variety of monoclinic prismatic crystal forms. It is transparent to translucent, has high indices of refraction, and ranges from colorless to yellow, green, and dark brown. Read more

ATel 10433: Spectroscopic Classification of ATLAS17fkc (= AT2017ebz) with Keck I

South Omega-Scorpiids meteor shower peak, in the constellation Scorpius, on the 31st May, 2012. ZHR: 5.0 Velocity: 25.5km/s The stream is active from the 23rd May to the 15th June Radiant: RA=16.7h/244° Dec=-22.1°

North Omega-Scorpiids meteor shower peak, in the constellation Ophiuchus, at 12:00 UT, 31st May, 2013. ZHR: 5.0 Velocity: 25.5km/s The stream is active from the 23rd May to the 15th June Radiant: RA=16.5h/249° Dec=-15.3°

ATel 10432: Spectroscopic classification of M31N 2017-05a (Gaia17biq) as a classical nova

China launches advanced satellite navigation positioning system China on Saturday launched a national satellite navigation and positioning system. It is the largest in the country and boasts the widest coverage. Li Weisen, deputy director of the National Administration of Surveying, Mappin...

The Ichkala (H6) meteorite fell in Tomskaya oblast', Russia, on the 29th May, 1936. A total mass of 3.97 kg was recovered. 58° 12'N, 82° 56'E

Systematic excavation of dinosaur fossils launched in NE China A researcher works at dinosaur fossil excavation site in Yanji, northeast China's Jilin Province, May 26, 2017. The Chinese Academy of Sciences and Yanji paleontologic fossil protection and research center have launched a systema...

Occasionally, physicists have postulated the existence of a fifth force in addition to the four known fundamental forces. The force is generally believed to have roughly the strength of gravity (i.e. it is much weaker than electromagnetism or the nuclear forces) and to have a range of anywhere fro...

Asteroid (116) Sirona is at Opposition on the 8th April 2012 Magnitude: 10.8 Distance to Earth: 1.448 AU Distance to Sun: 2.448 AU

On 28 May 1588, the Spanish Armada (Spanish: Grande y Felicísima Armada, "Great and Most Fortunate Navy") set sail from Lisbon (Portugal), headed for the English Channel. The fleet was composed of 151 ships, 8,000 sailors and 18,000 soldiers, and bore 1,500 brass guns and 1,000 iron gu...

Title: Advances in the measurement of the Lense-Thirring effect with planetary motions in the field of the Sun Authors: Lorenzo Iorio (Version v3) E.V. Pitjeva, by processing more than 400,000 planetary observations of various types with the dynamical models of the EPM2006 ephemerides, recent...