Drought fueled by climate change has dropped Lake Tahoe below its natural rim and halted flows into the Truckee River, an historically cyclical event that's occurring sooner and more often than it used to—raising fears about what might be in store for the famed alpine lake. [...]

NASA is aiming to launch its uncrewed lunar mission Artemis 1 in February next year, the space agency said Friday, the first step in America's plan to return humans to the Moon. [...]

Large technology companies such as SAP, IBM and Google are underreporting their greenhouse gas emissions at a time of heightened scrutiny over the role of corporations in driving climate change, a study released Friday claimed. [...]

Conflicts over water are as old as history itself, but the massive Google data centers on the edge of this Oregon town on the Columbia River represent an emerging 21st century concern. [...]

NASA said Friday it is now targeting February 2022 for the uncrewed lunar mission Artemis 1, the first step in America's plan to return humans to the Moon later this decade. [...]

Researchers at the University of Toronto and Ohio Wesleyan University are collaborating in a quest to find out how lizards can adapt to the world's changing climate. [...]

Portland State University researchers Martin Swobodzinski and Amy Parker, with student co-authors Julie Wright, Kyrsten Hansen and Becky Morton, have published a new article in Frontiers in Education: "Seamless Wayfinding by a Deafblind Adult on an Urban College Campus: A Case Study on Wayfinding Performance, Information Preferences, and Technology Requirements." [...]

A newly developed coating that allows for certain liquids to move across surfaces without fluid loss could usher in new advances in a range of fields, including medical testing. [...]

One of the youngest planets ever found around a distant infant star has been discovered by an international team of scientists led by University of Hawaiʻi at Mānoa faculty, students, and alumni. [...]

Genes aren't only inherited through birth. Bacteria have the ability to pass genes to each other, or pick them up from their environment, through a process called horizonal gene transfer, which is a major culprit in the spread of antibiotic resistance. [...]

Most of us control light all the time without even thinking about it, usually in mundane ways: we don a pair of sunglasses and put on sunscreen, and close—or open—our window blinds. [...]

When a handful of scientists tried to publish rapid research into the role of climate change in record rainfall that lashed Britain in 2015, they were told their high-speed approach was "not science". [...]

A team of archeologists in northern Peru discovered the remains of 29 people, including three children, that could help experts rewrite the history of the pre-Incan Wari civilization, the lead researcher said on Friday. [...]

When the COVID-19 pandemic shut down experiments at the Department of Energy's SLAC National Accelerator Laboratory early last year, Shambhu Ghimire's research group was forced to find another way to study an intriguing research target: quantum materials known as topological insulators, or TIs, which conduct electric current on their surfaces but not through their interiors. [...]

Nature clearly likes symmetry. Look at your own hands, for example. But sometimes nature produces asymmetric things, and the reasons aren't always clear. [...]

University of California San Diego Physics Professor Tom Murphy is among five authors of an essay, appearing in the November 2021 issue of the journal Energy Research & Social Science, that cautions current levels of worldwide economic growth, energy use and resource consumption will overshoot Earth's finite limits. [...]

The ATLAS collaboration is breathing new life into its LHC Run 2 dataset, recorded from 2015 to 2018. Physicists will be reprocessing the entire dataset—nearly 18 PB of collision data—using an updated version of the ATLAS offline analysis software (Athena). Not only will this improve ATLAS physics measurements and searches, it will also position the collaboration well for the upcoming challenges of Run 3 and beyond. [...]

Plants of the genus Parasenecio have long been used in traditional Chinese medicine for invigorating the circulation of blood, relieving rheumatic ache, and for the treatment of injures from falls. Previous phytochemical investigations on Parasenecio species demonstrate that sesquiterpenes, especially the eremophilanes, are their characteristic components. Parasenecio albus (P. albus), mainly distributed in the southwest of China, has been used as a folk medicine for heat-clearing and detoxifying therapy.    [...]

NASA has completed stacking of the agency's mega-Moon rocket and spacecraft that will launch the next generation of deep space operations, including Artemis missions on and around the Moon. Engineers and technicians successfully secured the Orion spacecraft atop the fully assembled Space Launch System (SLS) rocket at the agency's Kennedy Space Center in Florida just before midnight Oct. 21. [...]

Although many Americans favor expanding background checks for gun purchases, gun-control measures in Congress have failed to garner enough votes to pass. In contrast, some state legislatures have enacted measures to reduce gun violence in their communities. A new study examined the impact changes to background checks and licensing policies has made on different types of violent crime in Massachusetts. The study found no immediate impact, suggesting that state lawmakers may want to ensure their legislation is being implemented as intended. [...]

Numerous studies have examined the coercive nature of prisons, but few have considered the role of in-prison experiences (e.g., confinement in restrictive housing) and time served in prison in incarcerated people's perceptions of corrections officers' fairness. A new study examined whether in-prison experiences among a nationally representative sample of inmates varied in their effect across different lengths of time served on incarcerated people's perceptions of procedural justice. The study found that most incarcerated individuals' in-prison experiences lessened their perceptions of procedural justice and fairness. [...]

Sure, you could attach two screens with a hinge and call a cell phone "foldable," but what if you could roll it up and put it in your wallet? Or stretch it around your wrist to wear it as a watch? [...]

Natural wood already boasts an inherently lower life cycle cost than other materials and is a naturally strong, lightweight, and durable composite material that could offer an attractive alternative to commonly used polymers, metals and alloys, if its properties and functionality could be improved. [...]

Mapping the effects of mostly small-scale but extreme rainfall events in global climate models poses major challenges. Computer models that are used to simulate the global climate, for example in the reports of the Intergovernmental Panel on Climate Change (IPCC), usually have a resolution of grids with a scale of approximately 100x100 kilometers. [...]

In July 2020, 300 researchers from 34 different countries attended the CECAM virtual workshop, 'Quantum Battles in Attoscience'. EPJ D presents three community papers which emerged from the in-depth panel discussions held at this occasion. [...]

Throughout the planet's oceans reside a modest group of organisms with a fairly monumental task. [...]

Researchers have shed light on a long-standing mystery concerning how fungal spores are released and dispersed. [...]

On a Halloween pumpkin, warts and bumps have a certain spooky charm. But some unwanted bacteria-caused blemishes open the door to infections that rot and ruin this bright, seasonal fruit. [...]

A "massive" black hole (MBH) is one whose mass is more than about one hundred thousand solar-masses. MBHs reside at the centers of most galaxies, and when they actively accrete gas and dust onto their surrounding hot disk environments they radiate across the electromagnetic spectrum and are classified as active galactic nuclei. [...]

Limiting climate change to the 1.5°C target set by the Paris Climate Agreement will likely require coal and gas power use to decline at rates that are unprecedented for any large country, an analysis of decadal episodes of fossil fuel decline in 105 countries between 1960 and 2018 shows. Furthermore, the findings, published October 22 in the journal One Earth, suggest that the most rapid historical cases of fossil fuel decline occurred when oil was replaced by coal, gas, or nuclear power in response to energy security threats of the 1970s and the 1980s. [...]

San Diego
19°
Partly Cloudy
7:00am6:05pm PDT
18h19h20h
18°C
17°C
17°C