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Here’s what’s launching Dec. 8–14: SpaceX flies for the NRO, Rocket Lab launches for JAXA, and China continues its space surge with multiple flights.

A sweeping new analysis argues that complex cells began evolving almost a billion years earlier than many timelines suggest, long before oxygen became abundant in Earth’s atmosphere.

Led by the University of Bristol, the work redraws the early…

New observations of one of the famous TRAPPIST-1 planets are once again teasing scientists with tantalizing clues about a world that may — or may not — harbor an atmosphere capable of sustaining life-friendly liquid water.

TRAPPIST-1e is one…