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News at phys.org

Tuesday, Jul 2

23

Viewing Hurricane Beryl from space

phys.org

NASA astronaut Matthew Dominick captured this image of Hurricane Beryl in the Caribbean on July 1, 2024, while aboard the International Space Station, and posted it to X. The Category 4 hurricane had winds of about 130 mph (215 kph).

Two new species of Psilocybe mushrooms discovered in southern Africa

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Two new species of psychoactive mushrooms in the genus Psilocybe have been described from southern Africa, bringing the list to six known species indigenous to Africa. Psilocybe species are among the most well-known and well-studied…

Crews turn a corner with California's largest wildfire as massive heat wave brings new danger

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California firefighters battling a blaze that has ripped through more than 13,000 acres of the Sierra National Forest just north of the Giant Sequoia National Monument and close to several hydroelectric facilities finally began to gain…

Extreme temperatures becoming more common in Ireland, study finds

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A temperature event of 33 degrees Celsius in Dublin's Phoenix Park has gone from being a 1 in 180-year event in 1942 to a 1 in 9-year event in 2020, according to a study led by Ireland's Maynooth University.

21

NASA asteroid experts create hypothetical impact scenario for exercise

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A large asteroid impacting Earth is highly unlikely for the foreseeable future. But because the damage from such an event could be great, NASA leads hypothetical asteroid impact "tabletop" exercises every two years with experts and…

UN weather agency says Tropical Cyclone Freddy that hit eastern Africa last year was longest ever

phys.org

The U.N. weather agency said Tuesday that Tropical Cyclone Freddy, a deadly Indian Ocean storm that lashed eastern Africa last year, was confirmed to be the longest-lasting cyclone ever recorded at 36 days.

How climate change is affecting where species live

phys.org

As the climate warms, many species are on the move, raising new challenges for policy-makers around the world. Shifts in the ranges of mosquitoes and disease-bearing ticks and bats are introducing illnesses such as malaria and Lyme disease…

Quantum sensors: How does the flow profile affect flow measurements?

phys.org

Researchers at Fraunhofer IPM have developed a contactless flow measurement method based on magnetic fields. For the first time, they have been able to show the quantitative impact of the flow profile on the magnetic signal. This opens up…

Researchers investigate how climate change affects birds

phys.org

Research staff from the Gandia Campus of the Universitat Politècnica de València and the Cavanilles Institute of Biodiversity and Evolutionary Biology of the Universitat de València have assessed the effects of climate change on the…

20

NASA's NEOWISE infrared heritage will live on

phys.org

NASA's near-Earth-object-hunting mission NEOWISE is nearing its conclusion. But its work will carry on with NASA's next-generation infrared mission: NEO Surveyor.

19

New imaging technique uses Earth's warped surface to reveal rocky interior

phys.org

Surface mapping technology such as GPS, radar and laser scanning have long been used to measure features on the Earth's surface. Now, a new computational technique developed at The University of Texas at Austin is allowing scientists to…

Study explores what motivates people to watch footage of disasters and extreme weather

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Extreme weather events such as hurricanes and storms have increased in both frequency and severity in recent years. With that has come heightened public interest, resulting in often dramatic footage being live-streamed on platforms such as…

18

NASA Stennis achieves primary success for historic in-space mission

phys.org

NASA's Stennis Space Center and partner Sidus Space Inc. announced primary mission success July 2 for the center's historic in-space mission—an autonomous systems payload aboard an orbiting satellite.

More than half of Australian young people are using strangulation during sex: New research

phys.org

We recently surveyed thousands of young Australians about their experiences of strangulation (or choking) during sex and found more than half (57%) reported being strangled by a partner during sex. About half (51%) said they had strangled…

Small change in Earth's oxygen levels may have sparked huge evolutionary leap

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New research provides the clearest evidence yet that the Cambrian explosion—a rapid burst of evolution 540 million years ago, could have been triggered by only a small increase in oxygen levels in Earth's atmosphere and shallow ocean…

Melting of Alaskan glaciers accelerating faster than previously thought, research suggests

phys.org

Melting of glaciers in a major Alaskan icefield has accelerated and could reach an irreversible tipping point earlier than previously thought, new research suggests.

17

Researchers find crucial gaps in climate risk assessment methods

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Researchers from the Universities of Zurich, Vienna and Utrecht have uncovered significant flaws in current climate risk assessment techniques that could lead to a severe underestimation of climate-related financial losses for businesses…

Prosocial influencers can promote societal cooperation

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A modeling study suggests that influential neighbors can be as effective as despotic leaders at promoting social cooperation. Prosocial behaviors can be difficult to sustain in large societies over the long term, as people give into the…

16

Gov. Pritzker signs federal and state agreement to protect Lake Michigan from invasive carp

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After several months of back and forth, officials announced on July 1st that Illinois had signed a partnership agreement that will allow construction of the $1.15 billion Brandon Road Interbasin Project to begin with significant federal…

Australian bushfire ash can be deadly for aquatic life

phys.org

While the impact of wildfires on terrestrial life has been well studied, only recently has research started to examine the effects of wildfire ash on aquatic organisms. New research reveals that wildfire ash can have lethal consequences on…

11

Fires near Athens under control as new blazes rage in Greece

phys.org

Forest fires that raged near Athens over the weekend have been brought under control, firefighters said Monday, but fresh blazes sprang up elsewhere as authorities warned of a difficult fire season ahead.

Aboriginal ritual passed down over 12,000 years, cave find shows

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Two slightly burnt, fat-covered sticks discovered inside an Australian cave are evidence of a healing ritual that was passed down unchanged by more than 500 generations of Indigenous people over the last 12,000 years, according to new…

Hurricane Beryl pummels Caribbean, strengthens to Category 5

phys.org

Hurricane Beryl has strengthened into a top-level category 5 storm after it swept across several islands in the southeastern Caribbean, dumping heavy rain and unleashing devastating winds.

Stingray that got pregnant despite no male companion has died, aquarium says

phys.org

A stingray that got pregnant at a North Carolina aquarium this winter despite not having shared a tank with a male of her species for many years has died.

Monday, Jul 1

23

Increased atmospheric moisture may dampen the 'seeds' of hurricanes

phys.org

Increased atmospheric moisture may alter critical weather patterns over Africa, making it more difficult for the predecessors of many Atlantic hurricanes to form, according to a new study published this month. The work is published in the…

Laser, sonar technology finds that a northern California reservoir's capacity has shrunk by 3%

phys.org

The California state Department of Water Resources has started using laser and sonar technology to measure reservoir capacity, determining that Lake Oroville, the State Water Project's largest reservoir, has shrunk since its creation in…

22

Most climate-vulnerable countries with highest hunger rates significantly under-represented in agrifood research

phys.org

The most climate-vulnerable countries with the highest hunger rates are significantly under-represented in agrifood research—sparking a need for urgent action and increased investments to redress this imbalance, a major new study has found.

Determining the safest Mars caves for future astronauts

phys.org

When astronauts land on Mars someday, they might have to live in lava caves or lava tubes to survive the harsh radiation that rains down on the Martian surface every second. But which caves could offer them the best chance of survival?

With X-ray analysis, an asteroid provides a view into our solar system's past

phys.org

Imagine opening a time capsule, hoping to learn about the ancient past. Except, instead of a box or a chest, it's an asteroid that could provide insights into the very dawn of life on Earth.

Mothers who receive childcare support from maternal grandparents show more parental warmth, finds study

phys.org

Mothers whose parents help out with childcare are more likely to show their children parental warmth than mothers who do not receive any support, finds a study led by Nanyang Technological University, Singapore (NTU Singapore) and…