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14-02-25 generating electricity is not the only way to turn sunlight into energy we can use on demand（即期） . the sun can also drive reactions to create chemical fuels, such as hydrogen, that can in turn power cars, trucks and trains. the trouble with sola...

14-02-24 on jan. 28, 2014, nasa's interface region imaging spectrograph, or iris, witnessed its strongest solar flare since it launched in the summer of 2013. solar flares are bursts of x-rays and light that stream out into space, but scientists don't yet kn...

14-02-23 researchers at ucl have studied the behaviour of the sun's coronal mass ejections, explaining for the first time the details of how these huge eruptions behave as they fall back onto the sun's surface. in the process, they have discovered that coron...

14-01-08 an enormous sunspot, labeled ar1944, slipped into view over the sun's left horizon late on jan. 1, 2014. the sunspot steadily moved toward the right, along with the rotation of the sun, and now sits almost dead center, as seen in the image above fro...

13-12-19 a history of mourning robert bly it's odd that evening is so speckled（点缀） with grief. birds start singing when the branch reddens. but we write our poems when the sun goes down. our ancestors knew how to cry at death; but they had enough to do f...

13-12-11 the region located between the surface of the sun and its atmosphere has been revealed as a more violent place than previously understood, according to images and data from nasa's newest solar observatory, the interface region imaging spectrograph,...

13-08-07 something big is about to happen on the sun. according to measurements from nasa-supported observatories, the sun's vast magnetic field is about to flip. it looks like we're no more than three to four months away from a complete field reversal（逆转...

13-07-13 a solar tsunami observed by nasa's solar dynamics observatory (sdo) and the japanese hinode spacecraft has been used to provide the first accurate estimates of the sun's magnetic field. solar tsunamis are produced by enormous explosions in the sun's...

13-07-05 the last surviving creatures on earth will be tiny organisms living deep underground, according to scientists. 科学家认为，地球上最后生存的生物将是生活在地下深处的微生物，因为随着太阳变得越来越热，越来越亮，只有细菌才能在这种极端条件下苟延残喘。 res...

13-06-06 if you had a time machine that could take you anywhere in the past, what time would you choose? most people would probably pick the era of the dinosaurs in hopes of spotting a t. rex. but many astronomers would choose the period, four and a half bil...