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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.，更多细节参见Line官方版本下载
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BMW отзовет сотни тысяч автомобилей по всему мируKBA: BMW снова отзовет сотни тысяч авто по всему миру из-за угрозы возгорания，更多细节参见WPS官方版本下载
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