星际救援背后的宫斗大戏，NASA为啥不愿求助马斯克？ - 风闻



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Heart tissues beat half as strongly on the ISS as they do on Earth - Space.com
Paleontologists Unveil New Species of Sauropod Dinosaur - Sci.News

Launch Roundup: Vulcan ready for second flight; Hera mission set to study asteroid - NASASpaceflight.com
Northern lights primed to put on biggest show in decades over Canada - New York Post