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כתבות אחרונות מאתר 'Phys'
Phys

Non-rotating early galaxy is a surprise to astronomers‎

Astronomers using the James Webb Space Telescope have made a surprising discovery about a galaxy long, long ago and far, far away: It isn't rotating. That's something only seen in the most massive, mature galaxies that are closer to us in space and time, said Ben Forrest, a research scientist in the Department of Physics and Astronomy at the University of California, Davis, and first author on the paper published May 4 in Nature Astronomy.

18:02
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Phys

Black hole jets measured in real time, revealing 10,000-sun power‎

For the first time, scientists have measured the instantaneous mind-blowing power of jets blasting from a black hole.

18:02
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Phys

AI cuts wildlife tracking time from months to days‎

Artificial intelligence can dramatically speed up the painstaking work of tracking wildlife with remote cameras, cutting analysis time from months or even a year to just days while producing nearly the same scientific conclusions as humans.

17:06
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Phys

A snapshot of food insecurity among immigrants‎

When you hear the term "food insecurity," what do you imagine? Do you equate it with poor dietary practices—in other words, eating badly? And do you believe the solution is getting people to better plan, shop for and prepare healthy meals?

16:34
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Phys

Genetics link Angola's 'ghost elephants' to populations hundreds of miles away‎

For more than a decade, conservation biologist Steve Boyes searched for "ghost elephants"—nocturnal giants rumored to roam a remote, high-altitude wetland in eastern Angola. When a motion-sensor camera finally captured their image in 2024, Boyes turned to Stanford scientists for help answering a deeper question: Who are these elephants, and where did they come from?

16:05
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Phys

A close brush with Mars will reshape NASA's Psyche journey in a way few missions attempt‎

NASA's Psyche spacecraft will get a boost from Mars on Friday, May 15, passing just 2,800 miles (4,500 kilometers) from the planet's surface at some 12,333 mph (19,848 kph). The spacecraft will harness the planet's gravitational pull to speed up and adjust its trajectory toward the metal-rich asteroid Psyche, one of the more unusual objects in our solar system.

15:52
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Phys

Saturday Citations: Psychedelic therapeutics; interoception and well-being; a hidden linguistic bias‎

This week, researchers reported that the human brain is capable of sophisticated language processing while in an unconscious state during general anesthesia. An informatics and computing professor found that the Climate TRACE consortium has underestimated vehicle carbon emissions in cities by a staggering 70%. And archaeologists excavated and photoscanned a prehistoric man-made island located in a Scottish loch.

15:40
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Phys

What is the 'gray rock' method for dealing with narcissists or difficult family members?‎

If you're dealing with a relationship marked by conflict, criticism or manipulation—be it with a parent, co-parent or colleague—chances are you've come across the "gray rock" method on social media or advice blogs.

15:40
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Phys

New catalyst unlocks carbon-free ammonia heat for steel, cement and chemicals‎

A single-atom platinum catalyst lights ammonia at 200 °C and keeps it burning steadily at 1,100 °C with low NOx, generating high-grade, carbon-free heat for steel, cement and chemicals.

15:17
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Phys

What to know about the predictions for a potentially record-breaking El Nino‎

Seasonal models are predicting an El Niño climate pattern that could be the strongest on record, bringing with it more extreme weather.

13:09
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