ScienceCast : 在世界中心的世界

天文学家用NASA的哈勃太空望远镜发现了一个巨大的氢云,从一个叫格利泽436b的星球上蒸发出来的。由于母星的极端辐射,这颗行星的大气层正在蒸发中。 欲了解更多信息,请访问http://science.nasa.gov/。 点击这里查看更多视频:https://alugha.com/NASA

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