• 太空气象情况不容忽视

    13-12-10 A massive ejection of material from the sun initially traveling at over 7 million miles per hour that narrowly missed Earth last year is an event solar scientists hope will open the eyes of policymakers regarding the impacts and mitigation(减轻,缓...

  • 星际风进入太阳系的方向有所改变

    13-09-06 Data from NASA's Interstellar Boundary Explorer (IBEX) spacecraft reveal that neutral interstellar atoms are flowing into the solar system from a different direction than previously observed. Interstellar atoms flow past Earth as the solar system pa...

  • 原料钴使太阳能电池更耐用

    13-08-05 Researchers at the University of Basel have successfully replaced the rare element iodine(碘) in copper-based dye-sensitized solar cells by the more abundant element cobalt(钴) , taking a step forward in the development of environmentally friend...

  • 太阳北极点附近有一巨大的日冕洞

    13-07-22 The European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, captured this image of a gigantic coronal hole hovering over the sun's north pole on July 18, 2013, at 9:06 a.m. EDT. Coronal holes are dark, low density regions of the sun'...

  • 太阳能电池趋向轻薄化

    13-06-27 Most efforts at improving solar cells have focused on increasing the efficiency of their energy conversion, or on lowering the cost of manufacturing. But now MIT researchers are opening another avenue for improvement, aiming to produce the thinnest...

  • 6月20日太阳爆发过日冕物质抛射

    13-06-24 On June 20, 2013, at 11:24 p.m., the sun erupted with an Earth-directed coronal(冠状的) mass ejection or CME, a solar phenomenon that can send billions of tons of particles into space that can reach Earth one to three days later. These particles c...

  • 月球水冰变态之谜被揭开

    13-06-20 Using data gathered by NASA's Lunar Reconnaissance Orbiter (LRO) mission, scientists believe they have solved a mystery from one of the solar system's coldest regions -- a permanently shadowed crater on the moon. They have explained how energetic pa...

  • 太阳是一个“活跃的婴儿”

    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...

  • 天文学家通过“代理星球”研究遥远星体

    13-04-27 A University of Washington astronomer is using Earth's interstellar(星际的) neighbors to learn the nature of certain stars too far away to be directly measured or observed, and the planets they may host. Characterization by proxy is the technique...

  • 用树木制作可回收太阳能电池

    13-03-27 Solar cells are just like leaves, capturing the sunlight and turning it into energy. It's fitting that they can now be made partially from trees. Georgia Institute of Technology and Purdue University researchers have developed efficient solar cells...