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278,916 articles from PhysOrg

Unlocking visible femtosecond fiber oscillators: An advance in laser science

The emergence of ultrafast laser pulse generation, marking a significant milestone in laser science, has triggered incredible progress across a wide array of disciplines, encompassing industrial applications, energy technologies, life sciences, and beyond. Among the various laser platforms that have been developed, fiber femtosecond oscillators, esteemed for their compact design, outstanding...

NASA selects first lunar instruments for Artemis astronaut deployment

NASA has chosen the first science instruments designed for astronauts to deploy on the surface of the moon during Artemis III. Once installed near the lunar South Pole, the three instruments will collect valuable scientific data about the lunar environment, the lunar interior, and how to sustain a long-duration human presence on the moon, which will help prepare NASA to send astronauts to Mars.

ESA, NASA Solar Observatory discovers its 5,000th comet

On March 25, 2024, a citizen scientist in the Czech Republic spotted a comet in an image from the Solar and Heliospheric Observatory (SOHO) spacecraft, which has now been confirmed to be the 5,000th comet discovered using SOHO data. SOHO has achieved this milestone over 28 years in space, even though it was never designed to be a comet hunter.

NASA's Europa clipper survives and thrives in 'outer space on Earth'

In less than six months, NASA is set to launch Europa Clipper on a 1.6-billion-mile (2.6-billion-kilometer) voyage to Jupiter's ocean moon Europa. From the wild vibrations of the rocket ride to the intense heat and cold of space to the punishing radiation of Jupiter, it will be a journey of extremes. The spacecraft was recently put through a series of hard-core tests at the agency's Jet Propulsion...

Quantifying community resilience to riverine hazards in Bangladesh

In Bangladesh, annual flooding affects millions of people, particularly those in rural riverine communities. These communities have developed resilience strategies over generations to cope with flooding and erosion, but with increasing hazards and land pressures, the effectiveness of these strategies is uncertain.

Study of 34 countries finds ocean protection delivers overlooked economic benefits to fishing, tourism

In the most comprehensive assessment of its kind to date, a new study released today reveals that marine protected areas (MPAs, national parks at sea) deliver a range of economic benefits to the fishing and tourism industries. The study examined more than 50 protected areas in more than 30 countries in North America, South America, Europe, Africa, Asia and Oceania representing diverse ecosystems...

Veterinary surgeon: Spare flat-faced pets the respiratory distress

The demand for bulldogs and other flat-faced pets is at an all-time high. According to the American Kennel Club, from 2006-2016, the number of registered bulldogs and French bulldogs in the U.S. increased by 60% and 476%, respectively. In 2023, the French bulldog topped the AKC's most popular breeds list.

Rice husk can be used as a promising sustainable packaging material

Rice husk, the hard-protective layer that envelopes the inner grain of rice, constitutes approximately 20%–25% of the entire rice structure and produces a considerable amount of by-products. In a study published in the journal, Journal of Bioresources and Bioproducts, researchers have unveiled a pioneering approach to creating eco-friendly chitosan-based composite films using lignin-rich...

Astronomers conduct first search for forming planets with James Webb Space Telescope

Planets form in disks of dust and gas called protoplanetary disks that whirl around a central protostar during its final assembly. Although several dozens of such disks have been imaged, just two planets have been caught in the act of forming so far. Now, astronomers are aiming the powerful instruments aboard the James Webb Space Telescope at protoplanetary disks to try to find early clues about...

Low resting heart rate in women is associated with criminal offending, unintentional injuries

In women, a low resting heart rate is associated with a slightly raised incidence of criminal offending as well as unintentional injuries, in a large all-female study published March 27 in the open-access journal PLOS ONE by Sofi Oskarsson of School of Behavioural, Social and Legal Sciences, Örebro University, Sweden, and colleagues. This is the first time such an association has been shown in...

New analysis reveals a tiny black hole repeatedly punching through a larger black hole's disk of gas

At the heart of a far-off galaxy, a supermassive black hole appears to have had a case of the hiccups. Astronomers from MIT, Italy, the Czech Republic, and elsewhere have found that a previously quiet black hole, which sits at the center of a galaxy about 800 million light years away, has suddenly erupted, giving off plumes of gas every 8.5 days before settling back to its normal, quiet state.