The team also measured more than 70 chemical fingerprints in the gas, such as silicon monoxide, methanol, and acetone. Each responds to different physical conditions, so by comparing them, researchers can assess density, temperature, and motion, and identify where shocks ripple through clouds or where young stars add energy.
Apple has lightly refreshed its MacBook Air with the M5 chip, and it'll be available for preorder starting tomorrow (March 4) ahead of its formal launch on March 11. This story will be updated with preorder listings from the Apple Store and its retail partners as soon as they're live.，更多细节参见体育直播
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