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1. First evidence of ancient birds nesting above the Arctic circle
   Tiny bone fragments from Alaska suggest birds started breeding and nesting in the Arctic 30 million years earlier than previously thought
2. Leprosy was in the Americas long before the arrival of Europeans
   The history books say Europeans brought leprosy to the Americas, but analysis of ancient DNA reveals that a form of the disease was present in Argentina and Canada much earlier
3. Will SpaceX’s Starship rocket ever work – and what if it doesn’t?
   The failure of SpaceX’s ninth Starship launch has raised fresh concerns about the future of the rocket, but is there any alternative to Elon Musk’s approach to space?
4. Amazing images reveal new details in the sun's atmosphere
   City-sized droplets and twisting streams of plasma have been picked up by incredibly detailed images of the sun’s corona, showing our star as we’ve never seen it before
5. Qubit breakthrough could make it easier to build quantum computers
   Quantum computers that correct their own errors usually require hundreds of thousands of qubits. Start-up Nord Quantique claims it can dramatically decrease that number – but many challenges remain