News articles tagged with 'helium'
Two dying stars reborn as one
— 9 Apr 2011 11:49 | AstronomyWhite dwarfs are dead stars that pack a Sun's-worth of matter into an Earth-sized ball. Scientists have just discovered an amazing pair of white dwarfs whirling around each other once…
Supercritical carbon dioxide Brayton Cycle turbines promise giant leap
— 5 Mar 2011 13:09 | TechnologySandia National Laboratories researchers are moving into the demonstration phase of a novel gas turbine system for power generation, with the promise that thermal-to-electric conversion…
Study describes a tabletop source of bright, coherent X-rays
— 24 Oct 2010 18:14 | PhysicsProducing tightly focused beams of high energy X-rays, to examine everything from molecular structures to the integrity of aircraft wings, could become simpler and cheaper according…
Goddard team obtains the 'unobtainium' for NASA's next space observatory
— 29 Sep 2010 16:32 | TechnologyImagine building a car chassis without a blueprint or even a list of recommended construction materials…
Arctic rocks offer new glimpse of primitive Earth
— 12 Aug 2010 07:54 | Geology and palaeontologyScientists have discovered a new window into the Earth's violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that beneath…
Oldest Earth mantle reservoir discovered
— 12 Aug 2010 07:15 | Geology and palaeontologyResearchers have found a primitive Earth mantle reservoir on Baffin Island in the Canadian Arctic. Geologist Matthew Jackson and his colleagues from a multi-institution collaboration…
Helium pair have regular violent flare ups
— 24 May 2010 12:46 | AstronomyA team of astronomers led by Dr Gavin Ramsay of Armagh Observatory have spotted violent eruptions from an interacting pair of stars that orbit around each other every 25 minutes. Unusually,…
An explosive pair
— 20 May 2010 13:28 | AstronomyNot all explosions are created equal: It's as true for film effects as it is for the stars. Yet, until now, scientists had only observed two basic kinds of exploding stars, known as…
Possible new class of supernovae puts calcium in your bones
— 19 May 2010 17:00 | AstronomyIn the past decade, robotic telescopes have turned astronomers' attention to scads of strange exploding stars, one-offs that may or may not point to new and unusual physics…
Unique eclipsing binary star system discovered by UCSB astrophysicists
— 19 May 2010 17:00 | AstronomyAstrophysicists at UC Santa Barbara are the first scientists to identify two white dwarf stars in an eclipsing binary system, allowing for the first direct radius measurement of a rare…