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Subterranean tunnel, possibly used for medieval cult rituals, discovered in Stone Age tomb in Germany
By Kristina Killgrove published
A tunnel system discovered in a Stone Age tomb in Germany suggests medieval people created hiding places for their cultic rituals.

China banned all fishing to save the Yangtze River. This 'nuclear' option appears to be working.
By Chris Simms published
Decades of overfishing and habitat degradation led to huge declines in freshwater biodiversity in China's longest river, but there are signs of recovery after a fishing ban was implemented in 2021.

The earliest black holes in the universe may still be with us, surprising study claims
By Paul Sutter published
The earliest black holes in the universe may not have disappeared from Hawking radiation after all, new research hints. Instead, they fed on the energy of the ancient cosmos to grow supermassive.

Strange rocky world found lurking on the edge of 'inside out' planetary system
By Skyler Ware published
Astronomers have spotted an unusual 'inside-out' planetary system where a rocky world seems to have formed far beyond the realm typically reserved for gas giants.

Risk of death from pregnancy in the US is 44 times higher than that from abortion, new analysis reveals
By Marianne Guenot published
A figure commonly used to compare the risk of death from pregnancy compared with the risk of death from abortion might be based on outdated data, a new study suggests.

China's emissions are flatlining — and may be falling — in critical turning point for biggest emitter, report says
By Ben Turner published
The carbon emissions of the world's biggest greenhouse gas emitter have plateaued for nearly two years.

Upgrade to Antarctica 'ghost particle' observatory could pave the way to physics breakthroughs
By Stephanie Pappas published
The National Science Foundation's massive IceCube neutrino detector at the South Pole just got a major new upgrade, which promises to take the search for "ghost particles" to a new level.

'DNA origami' could be key for making an effective HIV vaccine, early study hints
By Zunnash Khan published
A new vaccine design uses folded DNA to steer the immune system toward producing the rare immune cells needed to make protective antibodies against HIV.

Medieval gold ring with dazzling blue gemstone discovered in Norway is a 'fantastically beautiful and rare specimen'
By Kristina Killgrove published
The delicate gold ring was made sometime in the Middle Ages and may have belonged to a high-status woman.

Radio signal discovered at the center of our galaxy could put Einstein's relativity to the test
By Elizabeth Howell published
Scientists hope to probe the nature of general relativity through a possible pulsar found in the center of the Milky Way, near a supermassive black hole.

Cancer vaccine shows promise against HPV-related throat tumors in early study
By Clarissa Brincat published
If proven effective in humans, the vaccine could complement standard therapies for HPV-driven cancer, as well as inform the design of therapeutic vaccines for other diseases.

Our leading theory of dark matter may be wrong, huge new gravity study hints
By Paul Sutter published
New research using a space-time phenomenon predicted by Einstein presents evidence that the invisible backbone of the universe may be much "fuzzier" than we realized.

Permafrost thaw and 'shrubification' have tipped Alaska's North Slope into a wildfire regime not seen for 3,000 years
By Sascha Pare published
An analysis of peatland soil samples and satellite images has found that wildfires on Alaska's North Slope are more frequent and severe now than they were at any point over the past 3,000 years.

World's oldest known sewn clothing may be stitched pieces of ice age hide unearthed in Oregon cave
By Sophie Berdugo published
The sewn hide, cordage and needles show how Indigenous Americans used complex technology to survive the freezing temperatures at the end of the last ice age and as a means of social expression.

Needle-free insulin? Scientists invent gel that delivers insulin through the skin in animal studies
By Sayan Tribedi published
A new polymer gel can deliver insulin through intact skin in animal tests. It could someday offer a path toward needle-free diabetes treatment, some say.

China has planted so many trees around the Taklamakan Desert that it's turned this 'biological void' into a carbon sink
By Sascha Pare published
Huge-scale ecological engineering around the edges of one of the world's largest and driest deserts has turned it into a carbon sink that absorbs more CO2 than it emits, research suggests.

Western Europe's earliest known mule died 2,700 years ago — and it was buried with a partially cremated woman
By Owen Jarus published
Scientists have identified the oldest mule remains ever found in the western Mediterranean.

Something supercharged Uranus with radiation during Voyager flyby 40 years ago. Scientists now know what.
By Skyler Ware published
Forty years ago, Voyager 2 flew past Uranus and observed radiation levels that defied explanation. Now, scientists may finally know exactly what happened.

Only certain types of brain-training exercises reduce dementia risk, large trial reveals
By Kamal Nahas published
A large, 20-year trial showed that speedy cognitive exercises could reduce the risk of Alzheimer's disease and other types of dementia. The question is, could these tasks be adapted into video games?
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