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150,000-year-old rock-shelter in Tajikistan found on ‘key route for human expansion’ used by Homo sapiens, Neanderthals and Denisovans

Along a stream in Tajikistan, archaeologists have discovered a rock-shelter that may have been a migration site for Neanderthals, Denisovans and modern humans over a span of 130,000 years. Archaeologists have long known that modern humans and our close relatives trekked through the so-called Inner Asian Mountain Corridor (IAMC) of Central Asia during the Stone […]

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Science

Will South Africa become first country to accept controversial form of human genome editing?

Researchers have voiced concerns after South Africa updated its health-research ethics guidelines to include a new section on heritable (or germline) human genome editing. Scientists say this could put the nation one step closer to accepting the controversial technique — which involves introducing genetic changes to sperm, eggs or embryos, such that the modifications will […]

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Science

Bioprinting breakthrough uses acoustic waves to create lab-grown human tissue

Researchers often test experimental pharmaceutical therapies using lab-grown human tissues. Unfortunately, creating these materials can be complex and costly, leading many researchers to turn to alternative approaches such as 3D bioprinting—itself a slow, painstaking process. Now, however, a new printing system is showing promise for dramatically shortening the time needed to create lab-grade tissue samples. […]

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Politics

Musk now says it’s ‘pointless’ to build a $25,000 Tesla for human drivers

By Chris Kirkham (Reuters) – When Reuters reported in April that Tesla (TSLA) had scrapped plans for a long-promised, next-generation $25,000 electric vehicle, the automaker’s stock plunged. Chief Executive Elon Musk rushed to respond on X, his social-media network. “Reuters is lying,” he posted, without elaborating. Tesla’s stock recovered some of its losses. Six months […]

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Science

How harmful are microplastics to human health?

Scientists have discovered that microplastics not just throughout nature but also throughout human bodies. Microplastics have been found throughout the human body — including inside lungs, blood and brains — and while it is not yet clear how harmful they are to our health, some researchers are sounding the alarm. These tiny pieces of plastic […]

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Politics

Drunk animals far more common than previously thought, helping explain human love of alcohol

Alcohol — and animals who love to consume it — is far more common in the natural world than scientists once believed, a new study has found. Because ethanol — the kind of alcohol that forms from fruit and grain sugars — is present in virtually every environment, most fruit-eating and nectar-sipping animals likely consume it, according…

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Science

Researchers tortured robots to test the limits of human empathy

In 2015, a jovial three-foot-tall robot with pool noodles for arms set out on what seemed like a simple mission. Using the kindness of strangers, this machine, called “hitchBOT” would spend months hitchhiking across the continental United States. It made it just 300 miles. Two weeks into the road trip, HitchBOT was found abandoned in […]

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Science

Stoneflies have changed color as a result of human actions, new study shows

Exemplar paired black and brown Zelandoperla clay models (body length ~25 mm) attached to schist (A) and greywacke (B) river cobble stones. Credit: Science (2024). DOI: 10.1126/science.ado5331 New Zealand’s native stoneflies have changed color in response to human-driven environmental changes, new research shows. Just published in the journal Sciencethe University of Otago study provides arguably […]

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Science

Human Adaptation to Spaceflight: The Role of Food and Nutrition

The latest book marks our third effort to review available literature regarding the role of nutrition in astronaut health. In 2009, we reviewed the existing knowledge and history of human nutrition for spaceflight, with a key goal of identifying additional data that would be required before NASA could confidently reduce the risk of an inadequate […]

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