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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.，详情可参考51吃瓜
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Mediators say more talks to be held next week but no clear evidence two sides any closer on uranium enrichment