不同人的衰老速度与星团存在类似现象 据美国物理学家组织网报道： http://phys.org/news/2012-12-stars-reveal-secrets-young.html 一些人即使步入老年也拥有看似年轻的身体，也有一些人 50 岁不到 就已显出老态。我们知道：一个人的衰老速度不仅取决于实际年龄， 同时也与生活方式、环境有关。 根据借助欧洲南方天文台 (ESO) 位于智利 的拉希拉天文台的 MPG/ESO2.2 米口径望远镜以及美国宇航局和欧洲 航天局的哈勃太空望远镜进行的一项新研究，星团也存在类似现象， 一些年代久远的星团外表看起来很年轻。 This image from the MPG/ESO 2.2-meter telescope at ESO's La Silla Observatory in Chile shows NGC 6388, a dynamically middle-aged globular cluster in the Milky Way. While the cluster formed in the distant past (like all globular clusters, it is over ten billion years old), a study of the distribution of bright blue stars within the cluster shows that it has aged at a moderate speed, and its heaviest stars are in the process of migrating to the center. A new study using ESO data has discovered that globular clusters of the same age can have dramatically different distributions of blue straggler stars within them, suggesting that clusters can age at substantially different rates. Credit: ESO, F. Ferraro (University of Bologna) Some people are in great shape at the age of 90, while others are decrepit before they're 50. We know that how fast people age is only loosely linked to how old they actually are—and may have more to do with their lifestyle. A new study using both the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory and the NASA/ESA Hubble Space Telescope reveals that the same is true of star clusters. 详细原来文请看： http://phys.org/news/2012-12-stars-reveal-secrets-young.html
标签: 衰老速度
