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 Jane | 2013-10-08

The good news: NASA has discovered the 10,000th near-Earth object (NEO).The bad news: At least 100,000 are still out there.

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by Jane | 2013-10-08

The oldest known star appears to be older than the universe itself, but a new study is helping to clear up this seeming paradox.

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by Jane | 2013-10-08

Gamma ray bursts, or GRBs, are some of the most intense displays of energy in the Universe. The origin of the mysterious short-duration gamma-ray bursts have eluded astronomers for decades, but a recent observation of a “kilonova” by astronomers using the

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by Jane | 2013-10-08

A big asteroid that flew past Earth last month belongs to a new category of space rock, scientists say.

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