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

The space agency is monitoring star 'V1647 Orionis', and have watched as intense magnetic fields drive torrents of gas into the stellar surface, where they heat large areas to millions of degrees.

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by 刘貂儿 | 2012-12-28

Sooner or later, the workhorse spacecraft will bid adieu to the solar system and enter a new realm of space – the first time a man-made object will have escaped to the other side. Perhaps no one on Earth will relish the moment more than 76-year-old Ed St

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by 刘貂儿 | 2012-12-28

Earth's song: Nasa picks up gleeful chirrups sent out from planet which can be heard by the human ear (...if you could take your helmet off in space)

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by 刘貂儿 | 2012-12-28

It is the first reported case of a planet orbiting a double-star that is being orbited by a second pair of stars, the phenomenon is called a circumbinary planet in a four-star system.

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