Hurricane Delta bears down on Mexico's Caribbean coast

Hurricane Delta churned towards Mexico's Caribbean coast on Wednesday as thousands of tourists hunkered down in emergency shelters in a string of major beach resorts.

California's August Complex largest fire in state's history

NOAA/NASA's Suomi NPP satellite captured another startling image of the August Complex of fires that has grown to over 1,000,000 acres burned (1,006,140 acres total) and because of that grim milestone the complex has been dubbed a "gigafire." The August Complex is only 58% contained. Inciweb reports that: "In the northeast zone, active behavior continues. Structures in Hidden Valley, Trinity Pines/Post Mountain, Wildwood and Platina are threatened by fire spread. Short range spotting and fire spread toward Hidden Valley has increased potential for impact to structures."

Women's expected longevity linked to age at birth of last child

No one knows for sure how long they will live. A new study, however, suggests that leukocyte telomere length may offer some key insights into a woman's longevity and further demonstrates how maternal age at birth of last child affects telomere length and long-term health. Study results are published online today in Menopause, the journal of The North American Menopause Society (NAMS).

Catheter ablation linked to reduced risk of dementia in patients with atrial fibrillation

People with atrial fibrillation have a reduced risk of dementia if they undergo a procedure called catheter ablation to restore the normal rhythm of their heart, according to a new study published today (Wednesday) in the European Heart Journal.

Study finds 'missing link' in the evolutionary history of carbon-fixing protein rubisco

A team of scientists has discovered an ancient form of rubisco, the most abundant enzyme on Earth and critical to life as we know it.

New study rebuts 75-year-old belief in reptile evolution

Challenging a 75-year-old notion about how and when reptiles evolved during the past 300 million-plus years involves a lot of camerawork, loads of CT scanning, and, most of all, thousands of miles of travel. Just check the stamps in Tiago R. Simões ' passport.

New 3-D model could explain the formation of a hexagon storm on Saturn

With its dazzling system of icy rings, Saturn has been a subject of fascination since ancient times. Even now the sixth planet from the sun holds many mysteries, partly because its distance away makes direct observation difficult and partly because this gas giant (which is multiple times the size of our planet) has a composition and atmosphere, mostly hydrogen and helium, so unlike that of Earth. Learning more about it could yield some insights into the creation of the solar system itself.

Study finds odor-sensing neuron regeneration process is adaptive

Olfactory sensory neurons are nasal neurons that make use of hundreds of different types of odorant receptors to analyze odorous chemicals in our external world and send that information to our brain. These neurons have the unusual ability to undergo turnover throughout life—a process understood to happen due to the special vulnerability of these neurons to environmental insults, such as viruses.

NASA catches development of Tropical Storm Norbert as Marie declines

NASA-NOAA's Suomi NPP satellite passed over the Eastern Pacific Ocean and captured the birth of a depression that became Tropical Storm Norbert while Marie continued weakening while headed toward the Central Pacific.

Infrared NASA imagery finds Chan-hom organizing, consolidating

NASA's Aqua satellite analyzed the large Tropical Storm Chan-hom as it tracked through the Northwestern Pacific Ocean. Aqua imagery showed the storm was consolidating, indicating a strengthening trend.

Are online grocery stores being designed to support consumer nutrition information needs?

With a steady growth in online grocery shopping, a new study in the Journal of Nutrition Education and Behavior, published by Elsevier, examines the availability of nutrition-related information on leading grocery store websites.

'Brain fog' following COVID-19 recovery may indicate PTSD

A new report suggests that lingering "brain fog" and other neurological symptoms after COVID -19 recovery may be due to post-traumatic stress disorder (PTSD), an effect observed in past human coronavirus outbreaks such as SARS and MERS.

Fighting pandemics with plasma

Most types of personal protective equipment, like N95 masks, gowns, and gloves, are designed for single use, which has led to both scarcity and waste during the COVID-19 pandemic. But new research suggests these vital supplies can be safely disinfected and reused.

Plasma scientists optimize plant growth and yield

Ever since scientists discovered that plasma treatment leads to faster growth and higher yields of some agricultural crops, physicists, chemists, and biologists have been working together to tease out the mechanisms driving this phenomenon.

Expanded newborn screening could save premature infants' lives

Expanding routine newborn screening to include a metabolic vulnerability profile could lead to earlier detection of life-threatening complications in babies born preterm, according to a study by UC San Francisco researchers. The new method, which was developed at UCSF, offers valuable and time-sensitive insights into which infants are at greatest risk during their most vulnerable time, immediately after birth.

Do eyeglasses help keep coronavirus out? Johns Hopkins expert says more evidence needed

During the current pandemic, we've all been advised to protect ourselves from infection by the SARS-CoV-2 virus that causes COVID-19 by masking, physical distancing and frequent hand-washing. In the Sept. 17 issue of JAMA Ophthalmology, a research team in China suggests that a fourth defensive measure also might be helpful: eye protection.

Physical activity and sleep in adults with arthritis

A new study published in Arthritis Care & Research has examined patterns of 24-hour physical activity and sleep among patients with rheumatoid arthritis, lupus, and knee osteoarthritis.

The benefits of a prostate cancer screening tool

Multiparametric magnetic resonance imaging of the prostate (mpMRIp) is a promising tool for diagnosing prostate cancer, and prior to its availability, detection relied on clinical exams and prostate specific antigen screening.