Science

racetrack laser

Harvard, TU Wien Unveil Racetrack Laser Producing Stable Mid‑Infrared Frequency Comb

Harvard and TU Wien have built a miniature racetrack‑shaped laser that creates stable frequency combs in the mid‑infrared. The device solves a long‑standing feedback problem that ruins standard combs. It could lead to chip‑scale gas sensors for greenhouse gas monitoring, industrial process control, or breath analysis. The work was led by Federico Capasso and published in Optica.

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NASA

NASA Targets 2027 Moon Base, 2028 Nuclear Mars Rocket in Bold Space Roadmap

NASA has unveiled plans to launch a nuclear electric propulsion rocket, Space Reactor-1 Freedom, to Mars by December 2028. The agency also outlined a three-phase, $30 billion plan to build a permanent moon base using nuclear power. The initiatives follow a White House executive order on space superiority and aim to enable faster deep-space travel.

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