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Earth to reach temperature tipping point in next 20 to 30 years, new NAU study finds

Earth’s ability to absorb nearly a third of human-caused carbon emissions through plants could be halved within the next two decades at the current rate of warming, according to a new study in Science Advances by researchers at Northern Arizona University, the Woodwell Climate Research Center and the University of Waikato, New Zealand. Using more than

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World’s space achievements a bright spot in stressful 2020

Astronauts blasted into orbit from the U.S. for the first time in nearly a decade, three countries sent spacecraft hurtling toward Mars, and robotic explorers grabbed rocks from the moon and gravel from an asteroid for return to Earth. Space provided moments of hope and glory in an otherwise difficult, stressful year. It promises to

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Well-preserved Ice Age woolly rhino found in Siberia

A well-preserved Ice Age woolly rhino with many of its internal organs still intact has been recovered from permafrost in Russia’s extreme north. Russian media reported Wednesday that the carcass was revealed by melting permafrost in Yakutia in August. Scientists are waiting for ice roads in the Arctic region to become passable to deliver it

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Researchers at Petrified Forest discover fossil of a reptile with claws and a beak

A team of researchers at Petrified Forest National Park east of Holbrook have discovered fossilized remains of a new species of prehistoric reptile. The 220-million-year old burrowing reptile is a drepanosaur, an ancient reptile that had a claw on its tail and a birdlike beak. Researchers, who named the species Skybalonyx skapter, announced the discovery

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Water world: Arizona scientists on new evidence, questions about life on Mars

Planetary scientists have confirmed the existence of a large saltwater lake under the icy surface of Mars, and they discovered three more lakes beneath the red planet’s south pole. The discovery, which was published in the journal Nature Astronomy in September, is based on radar data obtained from the European Space Agency’s Mars Express spacecraft.

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