来源:
https://www.space.com/old-faithful-galaxy-outbursts-114-days
(新闻报道日期:2021.01.17)
https://www.sciencetimes.com/articles/29092/20210113/scientists-have-figured-out-why-old-faithful-galaxy-flares-with-strang-regularities.htm
(新闻报道日期:2021.01.13)
https://www.ifa.hawaii.edu/info/press-releases/ASASSN14ko/
(新闻报道日期:2021.01.13)
蓝天白云mmty
“二十年以后,又是一条好汉。”——二十亿年以后,又是一颗原恒星