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Hydrogen Sulfide

All articles tagged with #hydrogen sulfide

JWST Discovers Hydrogen Sulfide on Distant Super-Jupiters, Illuminating Planet-Formation Paths
science6 days ago

JWST Discovers Hydrogen Sulfide on Distant Super-Jupiters, Illuminating Planet-Formation Paths

Using the James Webb Space Telescope, astronomers detected hydrogen sulfide in the atmospheres of HR 8799’s inner gas giants (c, d, e), suggesting sulfur came from solid material in their birth disks and signaling a universal pattern of heavy-element enrichment during planet formation. The study also showcases a direct-imaging technique that could, in time, help study Earth-like worlds for biosignatures.

Gaseous Molecule May Shield Brain Against Alzheimer's, Study in Mice Finds
science1 month ago

Gaseous Molecule May Shield Brain Against Alzheimer's, Study in Mice Finds

A Johns Hopkins-led lab study in genetically modified mice showed that slowly releasing hydrogen sulfide (the gas behind fart smells) with NaGYY improved memory and motor function by about 50% after 12 weeks, suggesting hydrogen sulfide signaling might slow neurodegeneration and could inform future Alzheimer’s therapies. Results are preclinical and limited to animal models, though researchers are now exploring the molecular pathways, including interactions with GSK3β, to understand potential human applications.

Gut Microbes and Fiber: New Breakthroughs in Reducing Heart Disease and Blood Pressure
health8 months ago

Gut Microbes and Fiber: New Breakthroughs in Reducing Heart Disease and Blood Pressure

Emerging research suggests that the gas hydrogen sulfide, produced in the gut and released during flatulence, may help lower blood pressure by causing blood vessels to dilate, highlighting a potential link between gut health and cardiovascular health. However, further studies are needed, and the research does not recommend unregulated flatulence or drastic dietary changes.

"Exoplanet with Rotten Egg Odor and Glass Rain Discovered"
science-and-technology1 year ago

"Exoplanet with Rotten Egg Odor and Glass Rain Discovered"

Scientists using the James Webb Space Telescope have detected hydrogen sulfide, a molecule that smells like rotten eggs, in the atmosphere of the exoplanet HD 189733b. This discovery marks the first time hydrogen sulfide has been found outside our solar system and provides new insights into the atmospheric composition of exoplanets. HD 189733b, a "hot Jupiter" known for its extreme weather, including glass rain and high temperatures, also contains water, carbon dioxide, and carbon monoxide. The findings, published in Nature, enhance our understanding of exoplanet formation and atmospheric chemistry.

Scientists Discover Exoplanet with Rotten Egg Stench
science1 year ago

Scientists Discover Exoplanet with Rotten Egg Stench

Scientists using the James Webb Space Telescope have detected hydrogen sulfide, a molecule that smells like rotten eggs, in the atmosphere of the exoplanet HD 189733b, marking the first time this molecule has been found outside our solar system. This discovery, along with the presence of water, carbon dioxide, and carbon monoxide, provides new insights into the atmospheric composition and formation of gas giant exoplanets. HD 189733b, known for its extreme weather and high temperatures, continues to be a key subject in the study of exoplanetary science.

"The Surprising Stench of Space: Astronauts Uncover Unpleasant Odors"
science2 years ago

"The Surprising Stench of Space: Astronauts Uncover Unpleasant Odors"

Astronomers have determined that Uranus likely smells like farts and rotting eggs due to the presence of hydrogen sulfide gas in its cloud cover, as detected by the Near-Infrared Integral Field Spectrometer. This gas gives off the distinctive smell of rotting eggs, and if humans were to descend into Uranus' atmosphere, they would likely find the smell nauseating. Additionally, researchers believe that Uranus and Neptune may also have ammonia ice in their clouds, contributing to the planet's unique and unpleasant aroma.

Devastating Poisonous Gas Wave Wiped Out Half of Earth's Sea Life in First Mass Extinction
science2 years ago

Devastating Poisonous Gas Wave Wiped Out Half of Earth's Sea Life in First Mass Extinction

A new study suggests that a surge of hydrogen sulfide gas may have played a significant role in the mass extinction event that occurred around 530 million years ago, wiping out 45% of all ocean animals. Previously, it was believed that low-oxygen conditions were the primary cause of the die-off. The researchers found high levels of molybdenum in sediment samples from the extinction period, indicating the presence of hydrogen sulfide in the water. The surge of this toxic gas may have been triggered by an explosion of organic matter, which led to the depletion of oxygen and the subsequent release of hydrogen sulfide. Further research is needed to determine the exact cause of the anoxic conditions and the sulfidic wave that followed.

Devastating Poisonous Gas Wave Wiped Out Half of Earth's Sea Life in First Mass Extinction
science2 years ago

Devastating Poisonous Gas Wave Wiped Out Half of Earth's Sea Life in First Mass Extinction

A new study suggests that a surge of hydrogen sulfide gas may have played a significant role in the Earth's first mass extinction event, which occurred around 530 million years ago. Previously, it was believed that low-oxygen conditions were the primary cause of the die-off. Researchers found high levels of molybdenum in sediment samples from the extinction period, indicating the presence of hydrogen sulfide in the water. The toxic gas may have been produced by an explosion of organic matter, leading to the death of 45% of all ocean animals. Further research is needed to determine the exact cause of the anoxic conditions and the subsequent sulfidic wave.

"Stinky Savior: Gut Microbe's Battle Against Pathogens"
health2 years ago

"Stinky Savior: Gut Microbe's Battle Against Pathogens"

Scientists have discovered a new gut bacterium, Taurinivorans muris, that feeds on taurine and produces hydrogen sulfide. While hydrogen sulfide has protective properties against certain pathogens, excessive amounts can harm gut health. This finding provides insights into the roles of taurine and hydrogen sulfide in the gut and their broader health implications, contributing to the development of future microbiome-based therapies.