Researchers study vast carbon residue of ocean life

The oceans hold a vast reservoir—700 billion tons—of carbon, dissolved in seawater as organic matter, often surviving for thousands of years after being produced by ocean life. Yet, little is known about how it is produced, ...

First dinosaur bones found in Denali National Park

Paleontologists from the University of Alaska Fairbanks and the National Park Service found the first dinosaur bones in Denali National Park during an expedition in July. They also discovered several new dinosaur trackways, ...

Planet's monthly hot streak ebbs in September

The planet's longest hot streak in 137 years of record-keeping came to an end Tuesday, with last month registering as the second warmest September in modern times, said US government scientists.

Bacterial genes boost current in human cells

Duke University biomedical engineers have harvested genes for ion channels from bacteria that, with a few tweaks, can create and enhance electrical signaling in human cells, making the cells more electrically excitable.

Mars missions: Past, Present and Future

Long before the space age, Earthlings were already in hot pursuit of life on Mars, using primitive telescopes and even psychic mediums to seek evidence of sentient beings.

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