秃公
加入时间: 2006/09/12 文章: 1667
经验值: 1777
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作者:秃公 在 寒山小径 发贴, 来自 http://www.hjclub.org

Hubble Finds Ghostly Ring of Dark Matter
05.15.07
This Hubble Space Telescope composite image shows a ghostly 'ring' of dark matter in the galaxy cluster Cl 0024+17.The most common substance in the universe is called dark matter. It doesn’t shine or reflect light. We can’t even see it.
Image right: This Hubble Space Telescope composite image shows a ghostly "ring" of dark matter in the galaxy cluster Cl 0024+17. The ring-like structure is evident in the blue map of the cluster's dark matter distribution. The map is superimposed on a Hubble image of the cluster. The ring is one of the strongest pieces of evidence to date for the existence of dark matter, an unknown substance that pervades the universe. Click image to enlarge. Credit: NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University)
GOD,这多浪费大自然的能量呀。
http://www.nasa.gov/mission_pages/hubble/news/dark_matter_ring_feature.html
作者:秃公 在 寒山小径 发贴, 来自 http://www.hjclub.org |
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