Phys.org
Hidden ocean feedback loop could accelerate climate change
A newly identified oceanic feedback loop may be silently turbocharging global warming, according to researchers at the University of Rochester. The study, published in *Proceedings of the National Academy of Sciences*, pinpoints a key mechanism driving methane production in the open ocean — a process previously poorly understood. The findings suggest current climate models may be underestimating the ocean's role as a greenhouse gas source, with significant implications for warming projections.
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Artemis astronauts to shed light on space health risks
NASA's Artemis II crew will serve as living data points for one of deep space's most pressing hazards: radiation exposure. Unlike the shielded environments of low-Earth orbit, lunar trajectories put astronauts in direct contact with elevated cosmic and solar radiation levels. The findings could prove critical for planning longer missions to the Moon and, eventually, Mars.
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Yellowstone's magma source may be closer than thought, reshaping hazard models
New research suggests Yellowstone's magma reservoir sits shallower beneath the surface than previously believed, a finding with significant implications for how scientists model eruption risk. Supereruptions — events capable of ejecting over 1,000 cubic kilometers of material — rank among the most catastrophic geological forces on the planet. The revised understanding could prompt a reassessment of hazard frameworks at one of the world's most closely watched volcanic systems.
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Non-producing oil and gas wells may emit microbial methane at rates 1,000 times higher than previously estimated
Idle oil and gas wells across Canada are leaking microbial methane at rates roughly 1,000 times greater than prior models suggested, according to new McGill University research published in Environmental Science and Technology. The findings expose a significant blind spot in how regulators and climate scientists have been accounting for fugitive emissions from the energy sector. With hundreds of thousands of non-producing wells dotting North America, the true scale of their climate impact may be far larger than anyone assumed.
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After reaching speeds of 10,657 meters per second, Artemis II hurtles home for make-or-break splashdown
NASA's Artemis II crew is hurtling toward Earth at over 10,600 meters per second following a historic lunar flyby, with Friday's splashdown marking the mission's most critical test yet. A successful reentry and ocean landing will validate the Orion capsule's heat shield and recovery systems, clearing the way for future crewed lunar missions. After 10 days of milestone achievements, the final minutes of flight remain the ultimate proving ground.
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