Talk:Aurora/@comment-121.214.37.42-20150608045810/@comment-121.214.37.42-20150608052453

Plus stars are formed br a collapsing ball of gas within a nebula becomes hot and dense enough to trigger nuclear reactions in its core. Because a young star is still surrounded by much of material In Which it formed. it remains unstable for some time. Often varying in brightness with unpredictable and violent results. It may throw off excess material as hight speed jets in line with its poles of rotation