Since 2010, IceCube, a detector frozen in the ice beneath the South Pole, has snared neutrinos from deep space. The universe is awash with these fleeting, almost massless particles, but IceCube is after a rare subset. They are messengers from distant cosmic accelerators such as supernovae, neutron stars, and black […]
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Breast milk ingredient may help power a healthy infant gut
Despite nourishing babies for millennia, the alchemy of human breast milk remains mysterious. One unknown is how ingredients in the milk, which vary based on a mother’s diet and environment, can affect a baby’s health. Now, after scrutinizing the makeup of milk made by humans and mice, researchers report that […]
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Watch grizzly bears run on treadmills—and find out why they like hiking trails
If you’ve ever worried a bear might be after your picnic basket, you may want to take the hardest, hilliest trail to your destination. That’s the take-home message of a new study, in which researchers got nine bears to run on treadmills—a first for science—and found that they, like their […]
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‘Compromise’ WHO report resolves little on pandemic’s origins, but details probe’s next steps
Science’s COVID-19 reporting is supported by the Heising-Simons Foundation.
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Experimental gene therapy for hemophilia probably did not cause patient’s liver tumor
The company uniQure has concluded that a virus used widely in gene therapy was very unlikely to have caused liver cancer in a hemophilia patient in a clinical trial.
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Amid criticism of its conservation policies, Brazil joins global biotrade pact
Brazil, a global hot spot for biodiversity, has become the 130th country to ratify the Nagoya Protocol, an amendment to a major global conservation pact that lays out specific rules for protecting a country’s claims to its biodiversity.
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‘I’m empty.’ Pandemic scientists are burning out—and don’t see an end in sight
When not caring for COVID-19 patients—her latest was a man with bacterial lung and blood infections superimposed on SARS-CoV-2 pneumonia—Krutika Kuppalli has been helping oversee the rollout of pandemic vaccines at the Medical University of South Carolina (MUSC), where she’s an infectious disease physician. She has also been meeting with […]