NASA's Roman Telescope Explores the Hidden Universe

Tropical Storm Karina has strengthened into a hurricane in the Pacific Ocean. Forecasters indicate it could become a major storm this week, though its current path keeps it away from land. However, the storm's swells are expected to generate hazardous conditions along parts of southwest Mexico and the Baja California Peninsula.

New research on fruit flies highlights divergent cellular strategies for gut repair: infection leads to cell death and regeneration, whereas dietary shifts cause existing cells to adapt in size. This finding challenges a uniform model of intestinal homeostasis and could inform future gut health research.

Human-caused climate change is likely intensifying El Niño events, making them stronger and more damaging, according to a new study published in Science. The research uses coral fossils to reconstruct El Niño strength over the past 900 years, revealing a significant increase in intensity since the pre-industrial era.