Tag

Corona

All articles tagged with #corona

science1 month ago•6 min saved

Van-Chased Storms Reveal Trees’ Ultraviolet Corona

Researchers mounted a UV camera on a modified minivan to capture the ultraviolet corona emitted by trees during thunderstorms for the first time. The team observed 41 bursts in sweetgum and loblolly pine across the U.S. East Coast, with each burst emitting billions of photons at around 260 nanometers. This real but previously unobserved glow could influence forest health and atmospheric chemistry and may play a role in thunderstorm electrification, suggesting such coronae occur across forests worldwide.

via Indian Defence Review|

#corona #forests #meteorology

science1 month ago•5 min saved

Trees Glow Ultraviolet in Storms - First Real-World Corona Evidence

Scientists captured the first field evidence of coronae—ultraviolet glows at leaf tips—generated by charge buildup as storms pass over trees. In lab simulations and storm-intercept observations along the US East Coast, researchers logged 41 bursts lasting 0.1–3 seconds, emitting about 100 billion photons per frame at ~260 nm, across species including sweetgum, loblolly pine, maple, and spruce, suggesting a real, widespread electrical glow with potential implications for forest chemistry and how thunderstorms electrify in a warming climate.

via ScienceAlert|

#atmospheric-electricity #corona #science

science1 month ago•4 min saved

Eclipsed Turbulence: Tracing How the Sun's Corona Feeds the Solar Wind

A decade of eclipse-era observations by researchers at the University of Hawai'i reveals turbulent structures in the Sun's outer atmosphere that originate from prominences and survive as they travel outward with the solar wind, providing new clues to coronal heating and space-weather effects on Earth.

via The Daily Galaxy|

#corona #prominences #science

space2 months ago•55 min saved

Three solar prominences erupt in rare artificial-eclipse footage from ESA's Proba-3

ESA's Proba-3 mission captured a five-hour artificial eclipse, producing a time-lapse of three solar prominences erupting from the Sun's corona. By aligning the coronagraph with an occulter, scientists can study the sun’s faint outer atmosphere in unprecedented detail, combining Proba-3 data with NASA's Solar Dynamics Observatory imagery. The prominences appear to erupt without the bright flares typical of solar explosions and are cooler than the million-degree corona, offering clues to why the corona is so hot and how these plasma eruptions contribute to solar activity.

via Live Science|

#artificial-eclipse #corona #proba-3

local-news3 months ago•1 min saved

Fatal Hit-and-Run in Queens on New Year’s Day

A man in his 20s was killed and another critically injured after being struck by a hit-and-run SUV while crossing the street in Corona, Queens, early New Year's Day; the driver fled the scene and is being sought by authorities.

via ABC7 New York|

#corona #fatality #hit-and-run

science5 months ago•4 min saved

Scientists Uncover Secrets Behind the Sun's Hot Atmosphere

New observations from the Daniel K. Inouye Solar Telescope suggest that Alfvén waves, magnetic waves traveling through the sun's corona, carry significant energy that may explain the long-standing mystery of why the sun's outer atmosphere is much hotter than its surface, potentially accounting for at least half of the heating required.

via Live Science|

#alfven-waves #corona #science

science6 months ago•2 min saved

Scientists Uncover the Mystery Behind Rain on the Sun

Scientists at the University of Hawai‘i have discovered that changing elemental composition in the Sun's corona drives the phenomenon of solar rain, resolving long-standing questions about how plasma cools and condenses rapidly during solar flares, which could improve space weather predictions.

via SciTechDaily|

#corona #elemental-makeup #science

science7 months ago•4 min saved

Astronomers Unintentionally Use 'Double Zoom' to Capture Black Hole's Corona in Detail

Astronomers used a rare 'double zoom' gravitational lensing technique to directly measure the size of a black hole's corona, revealing it to be about the size of our solar system, and opening new avenues for studying black hole environments.

via Live Science|

#astronomy #black-hole #corona

business7 months ago•2 min saved

Constellation Brands Shares Fall Amid Weak Beer Demand and Hispanic Market Decline

Constellation Brands, parent of Modelo and Corona, faces a significant drop in beer sales, especially among Hispanic consumers, leading to a profit and sales warning and a stock price near a 5-year low, with revised earnings and sales outlooks for 2026.

via MarketWatch|

#beer-sales #business #constellation-brands

business9 months ago•3 min saved

Constellation Brands Faces Market Challenges Amid Changing Consumer Trends

Constellation Brands, owner of Corona and Modelo, reports a 2% decline in beer sales and a 28% drop in wine and spirits, citing economic concerns, inflation, and changing consumer attitudes towards alcohol as key factors. The company is adjusting pricing strategies to address these challenges amid broader shifts in American drinking habits and health awareness.

via TheStreet|

#alcohol-consumption #business #constellation-brands

business9 months ago•2 min saved

Corona and Major Beer Brands Face Sales Decline Amid Economic and Political Challenges

Corona's parent company, Constellation Brands, reports a 2% decline in beer sales, primarily due to reduced spending by Hispanic customers who are staying home more often amid socioeconomic concerns and immigration policy fears, impacting sales in key markets.

via Business Insider|

#beer-sales #business #constellation-brands

science9 months ago•7 min saved

ESA's Proba-3 Mission Captures First Artificial Solar Eclipse Images

ESA's Proba-3 mission has captured the first images of an artificial solar eclipse using two satellites in precise formation, allowing detailed observation of the sun's corona and phenomena like prominences, which are crucial for understanding space weather and solar physics. This technology enables continuous observation of the corona without waiting for natural eclipses, marking a significant advancement in solar research.

via Space|

#corona #esa #proba-3

science10 months ago•4 min saved

Scientists Capture Unprecedented High-Resolution Images of the Sun's Corona and Sunspots

Scientists have achieved the sharpest-ever images of the sun's corona using advanced adaptive optics, revealing new features like delicate coronal rain, a rapidly forming plasma 'plasmoid', and dynamic solar prominences, which could help solve longstanding mysteries about solar heating and space weather phenomena.

via Space|

#adaptive-optics #corona #plasma

science-and-technology1 year ago•3 min saved

Satellites to Simulate Solar Eclipses for Scientific Study

The European Space Agency has launched the Proba-3 mission, consisting of two spacecraft designed to create an artificial solar eclipse to study the sun's corona. This mission aims to demonstrate precise formation flying technology and investigate why the corona is significantly hotter than the sun's surface. By blocking the sun's light with millimeter-level accuracy, researchers can observe the corona for extended periods, improving our understanding of space weather and its impact on Earth.

via Al Jazeera English|

#corona #esa #proba-3

science-and-technology1 year ago•4 min saved

ESA's Proba-3 Satellites to Simulate Solar Eclipses for Sun Study

The European Space Agency's Proba-3 mission, launched on December 5, 2024, aims to create artificial solar eclipses using two satellites to study the Sun's corona. By blocking the Sun's light, the mission will allow extended observation of the corona, providing insights into phenomena like Coronal Mass Ejections and solar wind acceleration. This mission also demonstrates advanced autonomous spacecraft operations, potentially transforming future space exploration by using multiple small satellites for complex objectives.

via The Daily Galaxy --Great Discoveries Channel|

#corona #esa #proba-3