美国St. Helens火山小喷发
可惜,如果大些, 火山灰进入高空大气层, 我们天文爱好者就有可能看到奇特颜色的太阳,月亮了.10/4上午喷发的webcam图片:
http://www-2.cs.cmu.edu/~zhuxj/astro/html/volcano.html
卫星照片:
http://www.ssec.wisc.edu/data/volcano.html Washington's Mount St. Helens has stirred back to life following years of quiet. This image of the volcano was created by the Shuttle Radar Topography Mission in 2000. (Oct. 1) 终于去了一趟, 照片在这里:
http://www-2.cs.cmu.edu/~zhuxj/travel/mt_st_helens_2004/html/index.html
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