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Asteroid impact sulfur release less lethal in dinosaur extinction
Paris, France (SPX) Jan 17, 2025 Approximately 66 million years ago, a massive asteroid known as the Chicxulub impactor struck the Yucatan Peninsula in present-day Mexico. Measuring an estimated 10 to 15 kilometers in diameter, the asteroid left a colossal 200-kilometer-wide crater. This event triggered rapid climate changes that ultimately caused the extinction of non-avian dinosaurs and about 75% of Earth's species. A significant factor in this mass extinction was an "impact winter" caused by the release of vast amounts of dust, soot ... read more |
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Quadrantid Meteor Shower offers 'perfect New Year treat'London, UK (SPX) Jan 10, 2025 One of Earth's most spectacular meteor showers will light up the night sky with an array of dazzling 'shooting stars' over the next fortnight. Stargazers will have a chance to catch a glimpse ... more 
UCF scientists examine unique asteroid-comet hybridOrlando FL (SPX) Dec 26, 2024 Although our Solar System is billions of years old, we've only recently become better acquainted with one of its more dynamic and captivating inhabitants known as (2060) Chiron. Chiron belongs ... more 
Lab experiments explore origins of gullies on Asteroid VestaLos Angeles CA (SPX) Dec 23, 2024 The rugged surface of asteroid Vesta, studied extensively by NASA's Dawn mission, features craters and mysterious gullies whose formation has puzzled scientists. These deep channels, previously hypo ... more 
Webb Telescope detects new population of small Main Belt AsteroidsLos Angeles CA (SPX) Dec 23, 2024 The James Webb Space Telescope (JWST) has expanded its role in solar system research, revealing a previously undetectable population of small asteroids within the main asteroid belt between Mars and ... more |
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MIT astronomers find the smallest asteroids ever detected in the main beltBoston MA (SPX) Dec 10, 2024 The asteroid that extinguished the dinosaurs is estimated to have been about 10 kilometers across. That's about as wide as Brooklyn, New York. Such a massive impactor is predicted to hit Earth rarel ... more 
China observatory documents asteroid before entering Earth's atmosphereSydney, Australia (SPX) Dec 08, 2024 An astronomical observatory in Yunnan Province, southwest China, has successfully documented the rare event of a near-Earth asteroid falling to Earth, according to an announcement by the Chinese Aca ... more 
PSI researchers confirm new main-belt cometTucson AZ (SPX) Dec 05, 2024 A mysterious object discovered in the main asteroid belt in 2021 was determined to be a main-belt comet by Planetary Science Institute Senior Scientist Henry Hsieh, Scott Sheppard of the Carnegie In ... more 
Massive asteroid strikes left no lasting impact on Earth's climateLondon, UK (SPX) Dec 05, 2024 A new study led by researchers from University College London reveals that two massive asteroid impacts that occurred approximately 35.65 million years ago had no long-term effect on Earth's climate ... more 
NASA-led team links comet water to Earth's oceansGreenbelt MD (SPX) Dec 04, 2024 Researchers have found that water on Comet 67P/Churyumov-Gerasimenko has a similar molecular signature to the water in Earth's oceans. Contradicting some recent results, this finding reopens the cas ... more |
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New evidence of organic reservoirs found on Ceres
Barcelona, Spain (SPX) Dec 04, 2024 Six years after NASA's Dawn mission completed its historic exploration of Ceres and Vesta, scientists continue to uncover remarkable insights about the largest bodies in the asteroid belt. A recent study led by the Instituto de Astrofisica de Andalucia (IAA-CSIC) reveals eleven new areas on Ceres that suggest the presence of a substantial internal reservoir of organic materials. This finding, based on Dawn spacecraft data, sheds new light on Ceres' origin and potential for harboring life-supporting proc ... read more 
From space to atmosphere scientists unravel secrets of asteroid 2022 WJ1Los Angeles CA (SPX) Nov 26, 2024 Scientists led by Lowell Observatory's Dr. Teddy Kareta have made remarkable strides in characterizing near-Earth asteroids (NEAs) by combining telescopic observations with fireball camera data. The ... more |
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Earthbound asteroids may be tracked more precisely using new equation London, UK (SPX) Nov 26, 2024 Tracking potentially hazardous asteroids with greater precision may now be achievable thanks to a novel equation for calculating their orbits more accurately. Building on concepts introduced b ... more 
As the Taurid meteor shower passes by Earth, pseudoscience rains down - and obscures a potential real threat from spaceAlbuquerque NM (SPX) Nov 16, 2024 With the Taurid meteor shower now hitting the night skies worldwide, look for what could be a celestial treat - you might see shooting stars, and maybe even fireballs, the biggest and brightest mete ... more 
Ion dynamics examined as comet 67P awakens from dormancyBerlin, Germany (SPX) Nov 14, 2024 A recent doctoral thesis at the Swedish Institute of Space Physics (IRF) and Umea University sheds light on how the interaction between comet 67P/Churyumov-Gerasimenko and the solar wind evolves as ... more 
NEOWISE concludes mission with re-entry but data continues to fuel discoveryLos Angeles CA (SPX) Nov 05, 2024 NASA's NEOWISE (Near-Earth Object Wide-field Infrared Survey Explorer) mission concluded as planned on Friday night when the spacecraft re-entered Earth's atmosphere, burning up after nearly 15 year ... more 
Taurid meteor shower to reach peak visibilityWashington DC (UPI) Nov 5, 2024 The Taurid meteor shower will be visible in the night sky for the next week for the phenomenon's annual appearance. ... more |
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