Tag #Science

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theguardian.com

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Apr 18, 22:10

Scientists Create New Color 'olo' Using Laser Technology

A team of US scientists used lasers to stimulate the medium-wavelength cones in the human retina, creating a new color called 'olo,' a saturated blue-green hue beyond the range of natural light; the method offers new ways to study color blindness and vision diseases.

Scientists Create New Color 'olo' Using Laser Technology

A team of US scientists used lasers to stimulate the medium-wavelength cones in the human retina, creating a new color called 'olo,' a saturated blue-green hue beyond the range of natural light; the method offers new ways to study color blindness and vision diseases.

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What is the nature of the newly discovered color 'olo', and what method was used to create it?

Scientists have created a new color, 'olo,' by using lasers to stimulate only the medium-wavelength cones in the retina, a feat previously impossible with natural light. This resulted in a blue-green hue described as incredibly saturated, perceived by five participants as a unique visual experience.

edition.cnn.com

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Apr 17, 16:15

Possible Biosignature Detected on Exoplanet K2-18 b

Scientists using the James Webb Space Telescope have detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b, which are gases produced by living organisms on Earth, suggesting the possible presence of microbial life, although further observations are necessary for con...

Possible Biosignature Detected on Exoplanet K2-18 b

Scientists using the James Webb Space Telescope have detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b, which are gases produced by living organisms on Earth, suggesting the possible presence of microbial life, although further observations are necessary for con...

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What is the significance of detecting dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b?

The James Webb Space Telescope has detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18 b, gases produced on Earth by biological processes. This suggests the possibility of microbial life on K2-18 b, although further observation is needed to confirm this biosignature. The findings are published in the Astrophysical Journal Letters.

welt.de

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Apr 17, 16:15

Possible Signs of Life Found on Exoplanet K2-18b

An international team, using the James Webb Space Telescope, detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18b, 124 light-years away, suggesting potential life but requiring further confirmation.

Possible Signs of Life Found on Exoplanet K2-18b

An international team, using the James Webb Space Telescope, detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18b, 124 light-years away, suggesting potential life but requiring further confirmation.

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How does the concentration of DMS and DMDS on K2-18b compare to Earth, and what are the implications of this difference?

The discovery builds upon previous findings of water and other gases in K2-18b's atmosphere. The detection of DMS and DMDS, confirmed using two different infrared ranges, strengthens the hypothesis of life. However, the concentration of these compounds is significantly higher than on Earth, raising further questions.

parsi.euronews.com

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Apr 17, 04:12

James Webb Telescope Detects Potential Biosignatures on Exoplanet K2-18b

The James Webb Space Telescope detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18b, a potentially habitable planet 124 light-years from Earth, suggesting the possibility of microbial life; however, further research is needed to confirm this hypothesis.

James Webb Telescope Detects Potential Biosignatures on Exoplanet K2-18b

The James Webb Space Telescope detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18b, a potentially habitable planet 124 light-years from Earth, suggesting the possibility of microbial life; however, further research is needed to confirm this hypothesis.

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What are the long-term implications of this discovery for the search for extraterrestrial life and the development of future astrobiological research?

While this discovery is a major step forward in the search for extraterrestrial life, it is crucial to note that this is not confirmation of life. Further research is needed to rule out alternative explanations and to characterize the nature and extent of any potential life forms. The discovery underscores the potential of the James Webb Space Telescope to detect biosignatures on potentially habitable exoplanets, ushering in a new era of observational astrobiology.

jpost.com

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Apr 17, 22:11

Possible Biosignatures Detected on Exoplanet K2-18 b

The James Webb Space Telescope detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b, suggesting the potential for microbial life, but further research is needed to confirm this finding.

Possible Biosignatures Detected on Exoplanet K2-18 b

The James Webb Space Telescope detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b, suggesting the potential for microbial life, but further research is needed to confirm this finding.

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What is the significance of detecting dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b?

The James Webb Space Telescope has detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18 b, gases typically produced by biological processes on Earth. This suggests the possibility of microbial life on K2-18 b, although confirmation requires further observation and analysis to rule out non-biological sources.

cnn.com

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Apr 17, 19:19

Brisk Walking Significantly Lowers Risk of Heart Rhythm Abnormalities

A large study published in the journal "Heart" found that brisk walking reduces the risk of heart rhythm abnormalities (atrial fibrillation, bradyarrhythmias, and ventricular arrhythmias) by 35-43%, compared to slow walking, with the strongest effects observed in women and individuals under 60 witho...

Brisk Walking Significantly Lowers Risk of Heart Rhythm Abnormalities

A large study published in the journal "Heart" found that brisk walking reduces the risk of heart rhythm abnormalities (atrial fibrillation, bradyarrhythmias, and ventricular arrhythmias) by 35-43%, compared to slow walking, with the strongest effects observed in women and individuals under 60 witho...

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What is the immediate impact of increasing walking pace on the risk of developing heart rhythm abnormalities?

A new study published in the journal "Heart" reveals that brisk walking is associated with a significantly lower risk of heart rhythm abnormalities. Compared to a slow walking pace, average and brisk walking paces were linked to a 35% and 43% reduction in the risk of all studied arrhythmias, respectively. This includes atrial fibrillation, bradyarrhythmias, and ventricular arrhythmias.

dailymail.co.uk

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Apr 17, 19:19

Strongest Evidence Yet of Life Outside Our Solar System Found on Exoplanet K2-18b

Scientists using data from the James Webb Space Telescope have detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18b, 124 light-years from Earth, providing strong evidence for the potential existence of extraterrestrial life.

Strongest Evidence Yet of Life Outside Our Solar System Found on Exoplanet K2-18b

Scientists using data from the James Webb Space Telescope have detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18b, 124 light-years from Earth, providing strong evidence for the potential existence of extraterrestrial life.

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Life Below Water

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How do the concentrations of DMS and DMDS on K2-18b compare to those on Earth, and what are the implications of this difference?

K2-18b, a Hycean world orbiting a red dwarf star in the habitable zone, exhibits atmospheric concentrations of DMS and DMDS thousands of times higher than on Earth. This aligns with earlier predictions and strengthens the hypothesis of a life-sustaining ocean on the planet. Further observations are needed to confirm this exciting discovery.

euronews.com

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Apr 17, 04:12

Record Glacial Melt in Scandinavia Threatens Water Resources and Ecosystems

Glaciers in Sweden and Norway experienced a record 1.8-meter melt in 2024, Europe's warmest year, threatening water resources, ecosystems, and historical climate data; heavy snowfall provided temporary relief but does not negate the long-term danger.

Record Glacial Melt in Scandinavia Threatens Water Resources and Ecosystems

Glaciers in Sweden and Norway experienced a record 1.8-meter melt in 2024, Europe's warmest year, threatening water resources, ecosystems, and historical climate data; heavy snowfall provided temporary relief but does not negate the long-term danger.

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What are the immediate consequences of the record glacial melt in Sweden and Norway during Europe's warmest year, 2024?

In 2024, Europe's warmest year on record, Swedish and Norwegian glaciers melted an average of 1.8 meters, exceeding historical rates. This dramatic melt, witnessed firsthand by glaciologist Erik Huss, raises concerns about their potential disappearance within decades, impacting water supplies and mountain ecosystems.

theglobeandmail.com

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Apr 17, 16:15

Possible Life Detected on Exoplanet K2-18 b

The James Webb Space Telescope detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b, suggesting possible microbial life 124 light-years away in the constellation Leo; however, further observations are needed to confirm this biosignature.

Possible Life Detected on Exoplanet K2-18 b

The James Webb Space Telescope detected dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b, suggesting possible microbial life 124 light-years away in the constellation Leo; however, further observations are needed to confirm this biosignature.

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What is the significance of detecting dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18 b?

The James Webb Space Telescope has detected dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in the atmosphere of exoplanet K2-18 b, gases produced on Earth by microbial life. This suggests the possibility of microbial life on K2-18 b, although further observations are needed to confirm this biosignature.

mk.ru

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Apr 17, 13:16

Early Universe Galaxy Discovery Challenges Formation Theories

Zhuolong, a Milky Way-like spiral galaxy discovered 1 billion years post-Big Bang, challenges existing theories on galaxy formation speed by exhibiting mature structure and a star formation rate of 20-155 solar masses annually, indicating surprisingly rapid development.

Early Universe Galaxy Discovery Challenges Formation Theories

Zhuolong, a Milky Way-like spiral galaxy discovered 1 billion years post-Big Bang, challenges existing theories on galaxy formation speed by exhibiting mature structure and a star formation rate of 20-155 solar masses annually, indicating surprisingly rapid development.

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What is the significance of discovering Zhuolong, a galaxy resembling the Milky Way, only 1 billion years after the Big Bang?

Astronomers have discovered a galaxy named Zhuolong, remarkably similar to the Milky Way, existing only 1 billion years after the Big Bang. This challenges existing theories about galaxy formation, suggesting a much faster process than previously thought.

tr.euronews.com

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Apr 17, 04:12

Record Glacial Melt in Sweden and Norway Threatens Water Resources and Biodiversity

Glaciers in Sweden and Norway melted a record 1.8 meters in 2024 due to climate change, jeopardizing water resources and ecosystems; this unprecedented melt rate threatens biodiversity and irreplaceable historical climate data.

Record Glacial Melt in Sweden and Norway Threatens Water Resources and Biodiversity

Glaciers in Sweden and Norway melted a record 1.8 meters in 2024 due to climate change, jeopardizing water resources and ecosystems; this unprecedented melt rate threatens biodiversity and irreplaceable historical climate data.

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What are the immediate consequences of the record glacial melt in Sweden and Norway in 2024, and what is the global significance of this trend?

In 2024, Sweden and Norway experienced a record 1.8-meter loss of glacial ice due to accelerating melting driven by climate change, as reported by the EU's Copernicus program. This dramatic ice loss, exceeding the natural melt rate, raises concerns about the long-term survival of these glaciers and their vital role in water resources.

npr.org

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Apr 17, 16:15

Stem-Cell Transplants Show Promise in Parkinson's Treatment

Two small studies revealed stem-cell transplants significantly eased Parkinson's symptoms in patients, with one showing a 20-point improvement on a standard scale; the FDA approved one treatment for a final-stage trial before potential approval, offering hope for the 1 million Americans with this di...

Stem-Cell Transplants Show Promise in Parkinson's Treatment

Two small studies revealed stem-cell transplants significantly eased Parkinson's symptoms in patients, with one showing a 20-point improvement on a standard scale; the FDA approved one treatment for a final-stage trial before potential approval, offering hope for the 1 million Americans with this di...

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What were the key scientific and technological hurdles overcome to achieve these stem-cell transplantation results?

Stem-cell transplants, derived from either human embryonic stem cells or induced pluripotent stem cells, produced dopamine and alleviated symptoms. Success follows decades of research, overcoming challenges in producing the right type of dopamine-producing neurons and scaling up cell production for clinical use. This marks a potential breakthrough after previous fetal tissue transplants yielded mixed results.

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