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

Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, the filament is part of the cosmic web that c

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by 刘貂儿 | 2012-12-28

Dark energy is thought to make up around 70% of the universe - and physicists have explored an idea called 'the big rip' where the energy destroys the entire universe.

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by 刘貂儿 | 2012-12-28

Curiosity's onboard weather station, which is called the Remote Environment Monitoring Station (REMS), has measured air temperatures as high as 43 degrees Fahrenheit (6 degrees Celsius) in the afternoon. And temperatures have climbed above freezing during

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by 刘貂儿 | 2012-12-28


NASA’s Curiosity rover took time out of its busy scooping and vibrating schedule on Oct. 9 to inspect a mysterious bright object that it spotted in the sand near its wheels the day before. Engineers have identified the bright bit as “shred of plast

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