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2023 Bethe Lecture: How fast is the universe expanding?（图）
宇宙膨胀 哈勃常数 宇宙学
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2023/5/17
The current rate of the expansion of space – called the Hubble constant – is a measure of the age and size of the universe. But recently, a new debate has emerged about the Hubble constant, potentiall...
Hans Bethe Lecture to illuminate black hole paradox
汉斯·贝特 黑洞悖论 讲座
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2023/5/23
Black holes are paradoxically both the simplest and most complex objects in the universe, as shown by the still-mysterious set of laws Stephen Hawking discovered a half-century ago. Resolving this par...
After the lecture:Astronomer Kelsey Johnson
After the lecture Astronomer Kelsey Johnson
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2016/12/27
University of Virginia astronomer Kelsey Johnson recently delivered a talk titled "How were the most ancient objects in the universe formed?" as part of the National Science Foundation's (NSF) Disting...