Scientists Discover 12-Billion-Year-Old Interstellar Comet 3I/ATLAS With Unique Chemical Signature

Scientists have identified interstellar comet 3I/ATLAS as the oldest known object to pass through the solar system, dating back 10–12 billion years. James Webb Space Telescope observations show it ...
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The State of American Performance: Shaking Down the USA’s Top Guns

Four wildly different machines reveal where American performance is now and where it’s headed next.