* Astronomy

Asteroid 11714 Mikebrown makes its closest approach to the Earth (1.039 AU) on the 29th August, 2012. 11714 Mikebrown (1998 HQ51) is a main-belt asteroid discovered by Lowell Observatory. It is named after the astronomer Michael E. Brown. Read more

Maxima of the long period variable U Cygni on the 15th May, 2011. Magnitude: 5.9-12.1 Period: 463.2 days Type: Mira Position(2000): RA 20 05 30.02, Dec +57 59 08.6 U Cyg is normally a very dim red star located about 1 arc minute from the magnitude 8 white star HD 193700 (which is also var...

Spoiler Using Barlow lenses with your telescope (a buyer's guide)

Two panel photo-mosaic captured with a 100mm f5 Helios refractor and vesta pro webcam. Motorised EQ1 Mount and Baader solar filter.

Metamaterials approach makes better satellite antennas Cheaper, lighter and more energy-efficient broadband devices on communications satellites may be possible using metamaterials to modify horn antennas, according to engineers from Penn State and Lockheed Martin Corp. [url=http://li...

Title: What do we Really Know about Uranus and Neptune? Authors: Morris Podolak, Ravit Helled The internal structures and compositions of Uranus and Neptune are not well constrained due to the uncertainty in rotation period and flattening, as well as the relatively large error bars on the gravita...

The biggest full moon of the year will light up China's Lantern Festival on the weekend, assuming favourable weather. "The full moon on Sunday, which coincides with the Lantern Festival, will look 10 percent bigger than its normal size" - Wang Sichao, an expert at the Chinese Academy of S...

US military satellite explodes above Earth A US military satellite exploded after detecting an unexplained "sudden spike in temperatur", sending dozens of chunks of debris tumbling into different orbits around Earth. Read more

The Villarrica volcano in Pucon, Chile has been upgraded from green to amber alert following the 8.8 earthquake that occurred on Saturday morning. Read more Snow-covered Villarrica, one of Chile...

Title: Discovery of a Faint Outer Halo Milky Way Star Cluster in the Southern Sky Author: Dongwon Kim, Helmut Jerjen, Antonino P. Milone, Dougal Mackey, Gary S. Da Costa We report the discovery of a new, low luminosity star cluster in the outer halo of the Milky Way. High quality gr photometry is prese...

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915, to undertake, promote, and institutionalise aeronautical research. On October 1, 1958, the agency was dissolved, and its assets and personnel transferred to the newly created National Ae...

Meteoriteshttp://astronomy.activeboard.com/t48103972/sitat...

The 230 - 520 metre wide asteroid 2015 BU512 will make a close pass (52.7 LD, 0.1354 AU) travelling at 26.95 km/second, to the Earth-Moon system on the 4th March 2015 @ 06:58 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

The 18 - 41 metre wide asteroid 2015 DU198 will make a close pass (16.7 LD, 0.0429 AU) travelling at 8.34 km/second, to the Earth-Moon system on the 4th March 2015 @ 12:31 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).