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Rocket Report: Era of cheap launch is over? Astra sets early 2027 target for return

Welcome to Edition 9.12 of the Rocket Report! The big story in the global launch industry remains SpaceX's plans to wind down Falcon 9 operations for commercial launches, possibly within the next two or three years. That has created a scramble among satellite operators and some p

Ars Technica - All content · 2026年9月25日 11:00

科学与环境

A strange circle on satellite maps turned out to be a 390-million-year-old impact crater

An amateur astronomer searching satellite maps for a Quebec camping spot accidentally discovered a massive ancient impact crater. Scientists later found shatter cones that confirmed the 25-kilometer-wide structure was blasted into Earth roughly 390 million years ago.

All Top News -- ScienceDaily · 2026年9月22日 10:43