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 | 2013-04-25

Washington, D.C. — For decades it has been thought that a shock wave from a supernova explosion triggered the formation of our Solar System.

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by 逸文 | 2013-04-25

Astronomers have discovered a structure in the universe so large that modern cosmological theory says it should not exist, a new study says.

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by 逸文 | 2013-04-24

Not just sartorial trends in ’70s trousers, superflares are enormous stellar eruptions that dwarf the most energetic sneeze the sun is likely to produce.

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by 逸文 | 2013-04-24

The point of no return: In astronomy, it’s known as a black hole — a region in space where the pull of gravity is so strong that nothing, not even light, can escape.

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