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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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ICYMI, Anthropic recently sunsetted Claude Opus 3, the first of its models to be retired since outlining new preservation plans. Part of this process is conducting "retirement interviews" with the outgoing models, allowing them to offer "perspective" on their situation, and Opus 3 apparently used this opportunity to request an outlet for publishing its own essays. Specifically, the model said it wanted to share its own "musings, insights or creative works," because doesn’t everyone these days?
Helium is used to pressurize tanks and help push fuel into the engines. Without proper helium flow, the rocket cannot safely fly. Because the upper stage is hard to reach at the launchpad, NASA rolled the stacked rocket back into the Vehicle Assembly Building, the sky-scraping hangar where it was originally put together.
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