Since 2012
Simulations reveal that Jupiter’s rapid growth disrupted the early solar system, creating rings where new planetesimals formed much later than expected. These late-forming bodies match the ages and chemistry of chondrite meteorites found on Earth. The findings also help explain why Earth and the other rocky planets remained near 1 AU rather than plunging inward.
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People living in socially and economically disadvantaged neighborhoods may face higher dementia risks, according to new research from Wake Forest University. Scientists found biological signs of Alzheimer’s and vascular brain disease in those from high-burden areas, particularly among Black participants. The results suggest that social and environmental injustices can alter brain structure and function. Improving community conditions could be key to protecting brain health. Source link
Scientists discovered that a week of full submergence is enough to kill most rice plants, making flooding a far greater threat than previously understood. Intensifying extreme rainfall events may amplify these losses unless vulnerable regions adopt more resilient rice varieties. Source link
Hypersonic flight could one day make long-haul travel as quick as a short movie. Researchers are testing how turbulence behaves at extreme speeds, a critical hurdle for designing these aircraft. Their laser-based krypton experiments suggest turbulence at Mach 6 behaves more like slower airflow than expected. The results could simplify hypersonic vehicle design and accelerate progress toward ultra-fast travel. Source link