The Magnetic Nature of a Mysterious Cosmic X-ray Emitter

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Copyright M. M. Jardine and J. F. Donati.
Copyright M. M. Jardine and J. F. Donati.

Our Sun has its explosive flares and spots and high speed wind, but it is a placid star compared to some. Stars that are much more massive live fast and die young, with blue-white, intensely hot surfaces that emit energy at a rate millions of times greater than that of the Sun. These stars are so bright that their light alone propels outflowing stellar winds - up to a billion times stronger than the solar wind - at speeds of up to 30,000 km/s, or one per cent of the speed of light.


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All News summaries for June 06, 2006

NASA study finds rising Arctic storm activity sways sea ice, climate

3 hours ago | User rating: not rated yet
A new NASA study shows that the rising frequency and intensity of arctic storms over the last half century, attributed to progressively warmer waters, directly provoked acceleration of the rate of arctic sea ice drift, long ...

Lichens function as indicators of nitrogen pollution in forests

4 hours ago | User rating: not rated yet
Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species.

NASA spacecraft ready to explore outer solar system

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The first NASA spacecraft to image and map the dynamic interactions taking place where the hot solar wind slams into the cold expanse of space is ready for launch Oct. 19. The two-year mission will begin from ...

University professor stresses links between US Navy sonar and whale strandings

5 hours ago | User rating: not rated yet
Earlier this summer, the U.S. Supreme Court agreed to review a series of lower court rulings that restrict the Navy's use of sonar in submarine detection training exercises off the coast of Southern California. The court ...

India to launch unmanned lunar mission this month

5 hours ago | User rating: not rated yet
India will launch its first lunar mission on October 22 from southern India, a top official from the country's space agency said Monday.
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