Astrobiology Jul 24, 2026

Why Europa's hidden ocean may be more difficult to reach than scientists thought

Europa, one of Jupiter's icy moons, has long fascinated scientists because of what may lie beneath its frozen shell: a global ocean of liquid water. That hidden ocean has made Europa one of the most compelling places in the ...

Earth Sciences Jul 27, 2026

Low-level cloud loss amplifies global warming, simulations suggest

Low-level clouds over Earth's oceans play a prominent role in keeping our planet cool by reflecting sunlight away from the surface. But their response to climate change has been hard to model. Now, researchers at Caltech ...

Astronomy Jul 28, 2026

Tabby's star may be orbited by a planetary-mass companion

By analyzing data from NASA's Transiting Exoplanet Survey Satellite (TESS) and conducting new radial velocity measurements, U.K. and French astronomers have found evidence that the mysterious Tabby's star may be orbited by ...

Veterinary medicine Jul 27, 2026

Industrial poultry farming is accelerating the spread of a major foodborne disease

A new study by the Ineos Oxford Institute for Antimicrobial Research at the University of Oxford reveals that industrial poultry farming has led to a more than 100-fold increase in the movement of Campylobacter, allowing ...

Plants & Animals Jul 29, 2026

Two antibody gene systems may help explain vesper bats' unusual viral tolerance

It is a mystery that has puzzled scientists for years. How can the world's only winged mammals carry viruses that cause severe disease while rarely becoming seriously ill themselves?

Space Exploration 12 hours ago

Neptune's inner moons may be shattered remains of ancient icy worlds

In 1989, the Voyager 2 mission discovered six new moons orbiting Neptune, including five tiny ones that orbit just outside the planet's main rings. Because of their small sizes and locations, these satellites have been difficult ...

Materials Science Jul 29, 2026

A successful, sustainable catalyst for ethanol dehydrogenation

Ethanol is an alcohol used in a vast number of industrial and household applications. When dehydrogenated—in this case, stripped of some of its hydrogen atoms—it yields another important compound: acetaldehyde, which is used ...

Evolution Jul 23, 2026

When mothers make the winners: How alpha female lineages dominate hyena clans

In mammals, males are usually stronger and more competitive than females. Males also show greater inequality in reproductive success—the number of offspring they produce—than females. In spotted hyenas, the opposite is true: ...

Cell & Microbiology Jul 27, 2026

Hidden DNA copying may give bacteria a faster route to antibiotic resistance

The dangers of antibiotic overuse have become increasingly clear in recent decades. Excessive use accelerates the evolution of bacterial resistance to antibiotics, raising the alarming prospect of infections that no longer ...

Evolution Jul 24, 2026

Scientists turn modern biobanks into a new window on human evolution

For more than a century, scientists have sought to reconstruct human evolution using diverse lines of evidence, including fossils, genetic variation across populations and ancient DNA. Building on these approaches, researchers ...

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