亚当·盖伊·里斯是美国天体物理学家,也是约翰·霍普金斯大学和空间望远镜科学研究所的彭博社特聘教授,以研究超新星作为宇宙学探测器而闻名。里斯与索尔·佩斯分享了2006年肖氏天文奖和2011年诺贝尔物理学奖。奖项:诺贝尔奖、萧伯纳奖、麦克阿瑟奖学金。
We've known for a long time that the universe is expanding. But about 15 years ago, my colleagues and I discovered that it is expanding faster and faster. That is, the universe is accelerating, and that was not expected, but it is now attributed to this mysterious stuff called dark energy which seems to make up about 70 percent of the universe.
我们早就知道宇宙正在膨胀。 但是大约15年前,我和我的同事发现它的发展越来越快。 就是说,宇宙正在加速,这是出乎意料的,但现在它被归因于这种被称为暗能量的神秘物质,它似乎构成了宇宙的约70%。
Einstein wrestled with a problem back before we even knew the universe was expanding, and he was looking for a way to keep the universe from collapsing. And so he discovered, in his theory of gravity, something like this dark energy - he called it a cosmological constant - could play this role, pushing things away.
在我们甚至不知道宇宙正在膨胀之前,爱因斯坦就曾为一个问题苦苦挣扎,他正在寻找一种防止宇宙崩溃的方法。 因此,他在引力理论中发现了类似这种暗能量的东西-他称之为宇宙常数-可以起到这一作用,将事物推开。