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Two papers pin the deadly disease’s introduction on British colonists and suggest the continent held far more people than previously believed

Arrival of H5N1 in Australia triggers ambitious vaccination program

Negative perceptions of mental illness and other health issues subtly shape outputs from large language models

A growing number of theories propose Uranus and Neptune are rocky worlds

Scientists have finally solved a nearly 30-year-old mystery surrounding two unusual molecules found in rye pollen that once showed an intriguing ability to help animals fight tumors. By determining their exact 3D structures, researchers have unlocked the blueprint needed to investigate how these natural compounds interact with the immune system and which parts may be responsible for their cancer-fighting effects.

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism could have unpredictable effects on Earth's ecosystems. By using robotic handling systems on the Moon, researchers hope to eliminate the risk of accidental exposure or release.

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CONCLUSIONS AND IMPLICATIONS: Families continue to shoulder a substantial share of aging-related care expenses, with financial burdens disproportionately concentrated among households providing intensive caregiving and those with fewer economic resources. These findings underline the hidden costs of population aging that are borne inequitably across socioeconomic status and signal the need for policy solutions that mitigate the financial burden on families supporting aging parents.