Three basic principles govern the course we recommend. The first is the “flexible path” approach that the Augustine commission advocated and that President Obama and Congress accepted.

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by 刘貂儿 | 2013-07-17

MANY a youngster, Babbage included, has dreamed of going into space. But becoming an astronaut is a hard slog. Sandy Antunes suggests a less daunting proxy. An astrophysicist and programmer with decades of NASA experience, Dr Antunes is a proponent of pic

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by 刘貂儿 | 2012-12-28

Dyson Spheres also fit squarely within with another theoretical model of civilizational advancement: the Kardashev Scale. In 1964, Soviet astronomer Nikolai Kardashev tried to plot out a theory of technological advancement based on a civilization's master

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by 刘貂儿 | 2012-12-28

Daily Mail >> reported, at first glance, the center of the Milky Way is a very inappropriate planets generated stellar density is very high here, and frequent supernova explosions to produce a huge shock waves from a supermassive black hole's powerful gra

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by 刘貂儿 | 2012-12-28

A pair of giant gassy plumes recently ejected by the sun ricocheted off each other like bouncy balls, changing solar physicists’ ideas about how these eruptions of charged particles and magnetic fields can behave.

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by 刘貂儿 | 2012-12-28

Something just went down on Jupiter. Monday morning, at 11:35:30 UT, amateur astronomers glimpsed a brief but blazing flash of light in the upper reaches of the planet's cloudy atmosphere.

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