I'd like to pay this cheque in, please actigall cost Tycho's supernova was witnessed by astronomer Tycho Brahe in 1572. The appearance of this new star stunned those who thought the heavens were constant and unchanging. At its brightest, the supernova rivaled Venus before fading from sight a year later. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])