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The week in Science
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US policy moved from making AI a research priority to launching a $5 billion grant program and proposing a broader redirection of federal science toward AI and industry. At the same time, threatened UK physics facilities showed how established research capacity faces pressure from funding decisions.
Evidence of accelerating oxygen loss broadened the picture of ecological stress, while forecasts pointed to an exceptionally strong El Niño and a clearer but time-limited planning window for Antarctic ice loss. Together, the findings tighten the timeline for preparing for interacting climate risks.
India's private launch milestone, a mission to extend aging satellite lifespans, and Starship's high-profile test and re-entry showed competition spreading across launch and orbital servicing. The week put both new market entrants and reusable heavy-lift systems under scrutiny.
AI produced a result on a problem that had resisted progress for decades, but the field then confronted the difficulty of checking plausible machine-generated proofs fast enough. That shift is driving calls for formal verification, disclosure, and reproducibility standards.
Astronomers reported atmospheric evidence from a rocky habitable-zone exoplanet and used Webb to detect a giant planet through a bright dust disk. A possible exosatellite further complicated how researchers define and classify planetary systems.
Researchers found that geomagnetic storms may have stronger extreme tails than current estimates suggest, while a newly identified solar-cycle signal could improve forecasts of future activity. The combination exposes both greater risk at the high end and a possible path to better prediction.
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