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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The ends, she explains, were covered in green enamel.，这一点在heLLoword翻译官方下载中也有详细论述
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3. The Secret Agent