It's not yet clear why researchers decided to point Webb in its direction, but little is known about the nebula, including the mass of the star creating it. That matters because a more massive star could eventually explode as a supernova, while a smaller, sun-like star would keep shrugging off layers of material until only a dense core remains and cools over time.
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，这一点在WPS官方版本下载中也有详细论述
Цены на нефть взлетели до максимума за полгода17:55
电影《暗黑新娘！》昨日释出最新预告片与宣传海报，确认将于 3 月 6 日在中国内地与北美同步上映。