Science

New Wearable Tracks Your Alcohol, Sugar, and Soreness Levels with Microneedles

New Wearable Tracks Your Alcohol, Sugar, and Soreness Levels with Microneedles

Imagine a future where, after a night of bar-hopping with friends, you can whip out your phone, consult a smartphone app connected to a wireless device stuck to the side of your arm, and find out exactly how hammered you are. It sounds like something you might see in the first couple minutes of a …

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Astronauts Have Distinct Brain Changes Even Months After They Return to Earth

Astronauts Have Distinct Brain Changes Even Months After They Return to Earth

Flung into freefall for months on end, our bodies adjust in ways that makes for a long list of health concerns for space travelers. The latest evaluation of microgravity’s warping effect on our biology focuses on the spaces surrounding the blood vessels that weave through our brain, revealing concerning changes that remain with astronauts between …

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New study finds omicron no less severe than earlier variants, and not just more transmissible

New study finds omicron no less severe than earlier variants, and not just more transmissible

A new study conducted by researchers at Harvard Medical School among others has found that the omicron variant of the coronavirus that causes COVID-19 is just as severe as earlier variants, and not more transmissible but no less severe, as previously thought. The study was based on the records of 130,000 COVID patients in Massachusetts …

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Listen to eerie sounds from echoing black holes

Listen to eerie sounds from echoing black holes

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN — Millions of elusive black holes hide in plain sight across the Milky Way galaxy, only giving away their presence occasionally through bursts of X-ray light when they feed on stars. Astronomers have been …

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Rocket Lab CEO touts helicopter catch of rocket as key toward reusable goals

Rocket Lab CEO touts helicopter catch of rocket as key toward reusable goals

The Electron booster comes into view of the company’s helicopter for the catch. RocketLab Rocket Lab CEO Peter Beck heralded the company’s first attempt on Monday to catch its Electron rocket booster using a helicopter after launch as “phenomenal,” telling CNBC that the test “achieved 99%” of the company’s goals toward reusing rockets. “Yesterday was …

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Omicron subvariants: New, fitter Covid-19 viruses begin to drive their own waves

Omicron subvariants: New, fitter Covid-19 viruses begin to drive their own waves

CNN — There’s no denying the numbers: Even with spotty reporting, Covid-19 cases and hospitalizations are rising again in the United States. Cases are trending up in most states and have increased by more than 50% compared with the previous week in Washington, Mississippi, Georgia, Maine, Hawaii, South Dakota, Nevada and Montana. In New York, …

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Medical professionals are skeptical about a fourth Covid vaccine dose

Medical professionals are skeptical about a fourth Covid vaccine dose

There hasn’t been enough research on how much protection a fourth dose can offer, medical professionals told CNBC. Justin Sullivan | Getty Images Countries are beginning to offer a fourth dose of the Covid-19 vaccine to vulnerable groups, but medical professionals are undecided on whether it would benefit the wider population. The US Food and …

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