Tom Gehrels (born February 21, 1925, Haarlemmermeer, the Netherlands) is an American astronomer, Professor Planetary Sciences, and Astronomer at the University of Arizona, Tucson. Gehrels pioneered the first photometric system of asteroids in the 50s, and wavelength dependence of polariza...
Title: On the formation of hot Neptunes and super-Earths Authors: D.S. McNeil, R.P. Nelson The discovery of short-period Neptune-mass objects, now including the remarkable system HD69830 (Lovis et al. 2006) with three Neptune analogues, raises difficult questions about current formation mo...
Giant balloon to be launched to test climate fix hope A huge helium-filled balloon attached to a 1km length of hosepipe is to be launched next month to help investigate the feasibility of climate engineering. One method involves pumping particles into the stratosphere, to mimic the short-term coo...
The Bruce County Astronomical Society, in partnership with the Bluewater Education Foundation, will mark the International Year of Astronomy by building of an observatory at the Outdoor Education Centre. The observatory will house the telescope donated by the University of Guelph in 2005, alo...
Title: Composition and accretion rate of fossil micrometeorites recovered in Middle Triassic deep-sea deposits Authors: Tetsuji Onoue, Tomoki Nakamura, Takeshi Haranosono and Chika Yasuda Micrometeorites, which are submillimetre-sized extraterrestrial particles that survive atmosph...
Title: M2K: II. A Triple-Planet System Orbiting HIP 57274 Authors: Debra A. Fischer, Eric Gaidos, Andrew Howard, Matthew Giguere, John A. Johnson, Geoffrey W. Marcy, Jason T. Wright, Kelsey I. Clubb, Howard Isaacson, Kevin Apps, Sebastien Lepine, Andrew Mann, John Moriarty, John Brewer, Julie...
Title: A High Eccentricity Component in the Double Planet System Around HD 163607 and a Planet Around HD 164509 Authors: Matthew J. Giguere, Debra A. Fischer, Andrew W. Howard, John A. Johnson, Gregory W. Henry, Jason T. Wright, Geoffrey W. Marcy, Howard T. Isaacson, Fengji Hou, Julien Spronck We r...
Title: HR 5907: Discovery of the most rapidly rotating magnetic B-type star by the MiMeS Collaboration Authors: J.H. Grunhut, Th. Rivinius, G.A. Wade, R.H.D. Townsend, W.L.F. Marcolino, D.A. Bohlender, Th. Szeifert, V. Petit, J.M. Matthews, J.F. Rowe, A.F.J. Moffat, T. Kallinger, R. Kuschnig...
Prehistoric clay disks found at Noatak National Preserve Four decorated clay disks have been discovered at a prehistoric site in Alaska, apparently the first artifacts of their type discovered in the state, the University of Alaska Museum of the North said. The disks were found during a summer exp...
A strong magnitude 6.1 earthquake occurred at 20:56:58 (UTC) on Sunday, February 4, 2007, in the Cuba Region, 120 km NNW of Montego Bay, Jamaica, at a depth of 10 km. Location 19.480°N, 78.303°W
Nasa satellites have weighed the water lost by the US State of California's heartland since 2003. The Sacramento and San Joaquin River Basins which support the highly productive Central Valley have shed over 30 cubic km of water in that time. The data comes from the Grace mission which detects chang...
The Upper Atmospheric Research Satellite, was decommissioned today. It's last battery failed in August and its mission concluded today with the shutting down of the satellite. Last week, a several-minute burn lowered the orbit of the satellite from its altitude of 375 miles, and orbital inclina...
Murray Gell-Mann (born September 15, 1929) is an American physicist who received the 1969 Nobel Prize in physics for his work on the theory of elementary particles. He is the Robert Andrews Millikan Professor of Theoretical Physics Emeritus at Caltech, a Distinguished Fellow and co-founder of th...
Jean-Pierre Serre (born 15 September 1926) is a French mathematician. He has made contributions in the fields of algebraic geometry, number theory, and topology. Read more
