图片新闻【532】太阳系的第十大行星？

A California astronomer has discovered what he believes is the 10th planet in our solar system, a group of NASA-funded researchers said on July 29, 2005. The new planet, known as 2003UB313, has been identified as the most distant object ever detected orbiting the sun, California Institute of Technology astronomer Michael Brown said. This artist's concept shows planet 2003UB313 at the lonely outer fringes of our solar system. Our sun can be seen in the distance. (Nasa/Reuters)

词汇：

astronomer n.天文学家
solar adj.太阳的, 日光的
identify vt.识别, 鉴别
institute n.学会, 学院, 协会
fringe n.边缘