搜索结果: 1-3 共查到“天文学 Lecture-4”相关记录3条 . 查询时间(0.031 秒)
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...
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...
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...