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- 20/10/27 23:14
Jupiter's lightning seems to produce brief, brilliant flashes of light high above its water clouds — alien versions of Earth's red sprites and...
256 articles from TUESDAY 27.10.2020
Jupiter's lightning seems to produce brief, brilliant flashes of light high above its water clouds — alien versions of Earth's red sprites and...
Canadians dramatically altered their behaviour by permanently reducing their interactions with others even as they began moving around more during the pandemic, a new study of cellphone data...
A Federal Court judge ruled Tuesday that the Canadian government won't be going on trial for contributions to climate change — striking down a lawsuit brought by 15 young Canadians who argued the government was violating their charter...
If elections are a technology, then the machine consists of an enormous sprawl of moving parts that goes well beyond what most people realize. The system usually has lots of problems, but things have become so unpredictable during the covid-19 pandemic that the failure or success of any one piece of that greater machine could have an outsized impact on the entire election. Consider the US...
Cucurbit downy mildew is a devastating disease for the United States cucurbit industry, which includes cucumbers, watermelon, squash, and pumpkin. The disease has caused major losses in North Carolina, which has significant cucumber and watermelon acreage. To help growers better manage this disease, a group of plant pathologists at North Carolina State University sought to better understand the...
Coronaviruses are adept at imitating human immune proteins that have been implicated in severe COVID-19 disease, a study from researchers at Columbia University Vagelos College of Physicians and Surgeons has found.
Getting rid of old cars is helping clean the skies over developed nations, but many clunkers are ending up in developing countries where they are add significantly to air pollution, a UN report warns.
Boulder, Colo., U.S.: Hurricanes, the United States' deadliest and most destructive weather disasters, are notoriously difficult to predict. With the average storm intensity as well as the proportion of storms that reach category 4 or 5 likely to increase, more accurate predictions of future hurricane impacts could help emergency officials and coastal populations better prepare for such...
A team of researchers at Columbia University Vagelos College of Physicians and Surgeons and New York State Psychiatric Institute have embarked on the largest, most comprehensive longitudinal study of how U.S. college students are being impacted by the COVID-19 pandemic—and how they are seizing the moment to redefine their futures.
Across the western U.S., severe wildfires fueled by tinder-dry vegetation have already burned more than 3.2 million hectares (8 million acres [as of the time of this press release])—an area the size of Maryland—in 2020, and nearly six times that area burned this year in Australia. And even though neither country's worst-ever fire year is not yet over, concerns are already mounting regarding...
A new study from the Cornell Lab of Ornithology confirms that most birds—but not all—synchronize their migratory movements with seasonal changes in vegetation greenness. This is the first study of its kind to cover the Western Hemisphere during the year-long life cycle of North American migratory birds that feed on vegetation, seeds, nectar, insects, or meat. The findings were published today...
A relatively new method to control nuclear fusion that combines a massive jolt of electricity with strong magnetic fields and a powerful laser beam has achieved its own record output of neutrons—a key standard by which fusion efforts are judged—at Sandia National Laboratories' Z pulsed power facility, the most powerful producer of X-rays on Earth.
Portal origin URL: Greenland's Retreating Glaciers Could Impact Local EcologyPortal origin nid: 465828Published: Tuesday, October 27, 2020 - 16:37Featured (stick to top of list): noPortal text teaser: Details about the physical transformation of over 200 of the island’s coastal glaciers are documented in a new study, in which the authors anticipate environmental...
Like most spiral galaxies, the Milky Way has a roughly spherical collection of stars at its center called the bulge. How the bulge formed has been a long-standing mystery, with many studies suggesting that it built up over time through multiple bursts of star formation.
NASA's Mars 2020 Perseverance rover mission has logged a lot of flight miles since being lofted skyward on July 30—146.3 million miles (235.4 million kilometers) to be exact. Turns out that is exactly the same distance it has to go before the spacecraft hits the Red Planet's atmosphere like a 11,900 mph (19,000 kph) freight train on Feb. 18, 2021.
To better understand how the novel coronavirus behaves and how it can be stopped, scientists have completed a three-dimensional map that reveals the location of every atom in an enzyme molecule critical to SARS-CoV-2 reproduction.
Ice loss from the Greenland Ice Sheet has accelerated significantly over the past two decades, transforming the shape of the ice sheet edge and therefore coastal Greenland, according to scientific research led by Twila Moon, deputy lead scientist of the National Snow and Ice Data Center. These changes to the ice sheet could have far-reaching impacts on ecosystems and communities, as the flow of...
Scientists have discovered a massive detached coral reef in the Great Barrier Reef, measuring more than 500 meters high -- taller than the Empire State Building, the Sydney Tower and the Petronas Twin Towers.
To build the machinery that enables bacteria to swim the flagellum is assembled piece by piece, ending with the helix called flagellar filament, composed of six different subunits called flagellins. Microbiologists have demonstrated that adding sugar to the flagellins is crucial for the flagellum's assembly and functionality. Among the six flagellins, one is the special one serving a signalling...
Across the western US, severe wildfires fueled by tinder-dry vegetation have already burned more than 3.2 million hectares (8 million acres) -- an area the size of Maryland -- as of the end of October, 2020, and nearly six times that area burned this year in Australia. And even though neither country's worst-ever fire year is not yet over, concerns are already mounting regarding the next hazard...
Great egrets in the Everglades are losing their sexual motivation because they are exposed to mercury through the fish they eat, a University of Florida study using more than 20 years of data has found.
When the universe was only a tenth of its current age its galaxies experienced a growth spurt. It was this period that the scientists in the ALPINE project focused on when they used ESO's ALMA telescope to carry out the first ever large survey of distant galaxies. To their surprise, these galaxies observed in the early stages of their life were far more mature than expected. Their work is the...
Major US financial firms are helping fund environmental destruction and indigenous rights abuses in the Amazon with billions of dollars in investments in questionable companies, according to a report published Tuesday.
Scientists have shown that a potent antibody from a COVID-19 survivor interferes with a key feature on the surface of the coronavirus's distinctive spikes and induces critical pieces of those spikes to break off in the process.
Residents of the storm-pummeled Gulf Coast steeled themselves for yet another tropical weather strike Tuesday after Zeta raked across the Yucatan Peninsula on a track that forecasters said would likely bring it ashore south of New Orleans as a hurricane.
Fossils recovered from Antarctica in the 1980s represent the oldest giant members of an extinct group of birds that patrolled the southern oceans with wingspans of up to 21 feet (6.4 meters) that would dwarf the 11½-foot wingspan of today's largest bird, the wandering albatross.
Cosmologist who asked whether the existence of intelligent life has implications for the nature of the universeThe cosmologist John Barrow, who has died aged 67 from colon and liver cancer, was a renowned populariser of science. He combined mathematical and physical reasoning to increase our understanding of the very first moments of the universe.This he did by giving elegant mathematical...
New results from NASA's Juno mission at Jupiter suggest that either "sprites" or "elves" could be dancing in the upper atmosphere of the solar system's largest planet. It is the first time these bright, unpredictable and extremely brief flashes of light—formally known as transient luminous events, or TLE's—have been observed on another world. The findings were published on Oct. 27, 2020, in...
Maci, a four-year-old poodle-bichon from the Niagara Region, is the first Canadian dog to test positive for COVID-19.
US scientists release report on meteorite fragments from 2018 eventA fireball that struck near Hamburg, Michigan, in 2018 could offer new insights into the history of the solar system, researchers have said.The fireball – a type of very bright meteor that would even be observed in daylight – was spotted in several states as it flew across the sky on the evening of 16 January 2018; the meteor...