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What a worm’s brain can teach us about sex differences in the nervous system

Ever wonder what goes on inside the brain of a worm—how it processes information, responds to stimuli and perceives the world around it? Northeastern University researchers have opened up that can of worms, specifically the one containing C. elegans, a tiny roundworm that's one of the most extensively studied animals in biology.

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Hand-cranked device tells blood type and red cell levels in 1 minute

When someone is badly injured, doctors urgently need two facts: the patient's blood type, so that a transfusion is safe, and their hematocrit, the share of the blood made up of red blood cells, which reveals blood loss or anemia. Hospitals measure both with large machines that need electricity and trained staff, which are often unavailable in ambulances, disaster zones or remote clinics.

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Salt crystals could hold clues to life beneath Enceladus’s ice

The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.

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The ambiguous costs of climate change

As human activity has increased temperatures globally, determining the costs directly incurred by climate change is challenging. The effects of climate change on extreme weather events—such as hurricanes and heat waves—can be locally specific and variable, and observations and climate modeling might not accurately capture those effects.

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New drug reverses severe fatty liver disease by repairing the gut

Scientists have discovered that a potential new drug can reverse severe fatty liver disease in animal models by restoring gut health and blocking harmful substances from reaching the liver. The breakthrough could pave the way for new treatments for liver disease and potentially other serious conditions, including cardiovascular disease.

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Lone, starless cloud may be a ‘dark’ galaxy

Astronomers using China's FAST radio telescope have discovered a compact cloud of hydrogen with no visible stars or galaxy around it. This could be one of the strongest candidates yet for an isolated "dark galaxy," containing nearly 500,000 times the sun's mass in neutral hydrogen. The discovery paper was posted to the arXiv preprint server on Sept. 24.

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NASA’s Roman Space Telescope exceeds expectations by nearly 30%

NASA’s Nancy Grace Roman Space Telescope has exceeded expectations after engineers made incredibly tiny adjustments to sharpen its view of the universe. By moving a mirror just one-sixteenth the width of a human hair, the team helped bring its powerful instruments into near-perfect alignment. Roman’s Wide Field Instrument now produces image quality nearly 30% better than predicted, promising exceptionally sharp cosmic surveys.