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 逸文 | 2013-04-24

Spanish researchers have observed a rare asteroids from the Gran Telescopio Canarias (Spain) and have discovered that something happened around the 1st July 2011 causing a comet-like trail to appear: maybe internal rupture or collision with another astero

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by 逸文 | 2013-04-24

New data suggests the confirmation of the exoplanet Gliese 581g and the best candidate so far of a potential habitable exoplanet.

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by 逸文 | 2013-04-24

An international team of astronomers have discovered evidence that our Milky Way had an encounter with a small galaxy or massive dark matter structure perhaps as recently as 100 million years ago, and as a result of that encounter it is still ringing like

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by 逸文 | 2013-04-23

We’ve seen shells around this kind of star before, but this is the first time we’ve ever seen a spiral of material coming out from a star, together with a surrounding shell.

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