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.
安東尼·澤尼爾（Anthony Zurcher），BBC駐北美記者，更多细节参见heLLoword翻译官方下载
Варвара Кошечкина (редактор отдела оперативной информации)。关于这个话题，WPS下载最新地址提供了深入分析
Трамп высказался о непростом решении по Ирану09:14，这一点在旺商聊官方下载中也有详细论述