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"Large radio bubble detected in galaxy NGC 4217."

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Russ Roberts (https://hawaiisciencejournal.blogspot.com).

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Large radio bubble detected in galaxy NGC 4217

59Phys.org / 11h

An international team of astronomers has performed radio observations of a star-forming galaxy known as NGC 4217. The observational campaign detected a large radio bubble in the galaxy's halo. The finding was reported in a paper published September 23 on the pre-print server arXiv.

Nuclear rockets could travel to Mars in half the time, but designing the reactors that would power them isn't easy

Nuclear rockets could shorten Mars travel

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45Phys.org / 7h

NASA plans to send crewed missions to Mars over the next decade—but the 140 million-mile (225 million-kilometer) journey to the red planet could take several months to years round trip.

Limestone and iron reveal puzzling extreme rain in Western Australia 100,000 years ago

39Phys.org / 8h

Almost one-sixth of Earth's land surface is covered in otherworldly landscapes with a name that may also be unfamiliar: karst. These landscapes are like natural sculpture parks, with dramatic terrain dotted with caves and towers of bedrock slowly sculpted by water over thousands of years.

Today

Trees' own beneficial microbiome could lead to discovery of new treatments to fight citrus greening disease

Phys.org / 4h

Citrus trees showing natural tolerance to citrus greening disease host bacteria that produce novel antimicrobials that can be used to fight off the disease, our recent study shows. We found the trees at an organic farm in Clermont, Florida.

Study of global primate populations reveals predictors of extinction risk

Phys.org / 9h

An international team of biologists, planetary scientists and conservationists has conducted a large-scale study of non-human primate populations around the world to gauge their risk of extinction due to climate change.

Using AI to figure out the chemical composition of paints used in classical paintings

23Phys.org / 11h

A team of chemists and AI researchers at CNR, Istituto di Scienze del Patrimonio Culturale, has developed an AI model capable of determining the chemical composition of the paints used to make classical paintings.

Yesterday

Supreme Court lets stand rules to curb mercury, methane emissions

Supreme Court upholds Biden emissions rules

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Phys.org / 14h

The US Supreme Court declined on Friday to block environmental regulations aimed at reducing harmful emissions of mercury from power plants and methane from oil and gas facilities.

Field notes: Life in the Eldorado National Forest after wildfire strikes

Phys.org / 14h

Charred trees punctuated the Eldorado National Forest like blackened skeletons of their former selves, victims of the Mosquito Fire. Two years earlier, in 2022, the Mosquito Fire started in Tahoe National Forest, moved north to the Eldorado and torched a total of 76,788 acres, making it California's largest wildfire in 2022.

Nepalis fear more floods as climate change melts glaciers

Phys.org / 14h

Mingma Rita Sherpa was not home when the muddy torrent roared into his village in Nepal without warning, but when he returned, he did not recognize his once beautiful settlement.

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