Beyond the cloud's unusual shape, scientists see the nebula as a freeze-frame in the life of a star facing its final act. Elderly stars shed their outer layers in bursts, creating shells of gas and dust that expand. By observing the nebula at different wavelengths, researchers can sort out what material was molted first, how fast the star is losing mass, and which phase of decline Webb has caught.
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"I wouldn't have been worried if I had one bum cheek dragging on the floor. I didn't care at that point, I just wanted to go home," she said.。搜狗输入法2026对此有专业解读
The deluge the country has been experiencing in the last week has been put down to a blocked weather pattern - a high pressure system over Scandinavia is preventing the wet weather from moving away.