forecasting models. For many years scientists observed that oxygen‑rich surface waters were emitting measurable amounts of methane, a gas traditionally linked to anaerobic settings such as wetlands or deep‑sea sediments. The source of this paradox...

Needs an Atmospheric Reality Check Hydrogen is not a major greenhouse gas in the same direct way that carbon dioxide methane is. So why worry about it? Because atmospheric hydrogen can indirectly influence climate through its chemistry. Once in the air,...

Scientists have developed a new copper catalyst that efficiently converts Martian carbon dioxide into methane fuel, paving the way for sustainable space travel. Engineers at the University of Mississippi have unveiled a potential breakthrough for...

Earth. Unlike any other moon in the Solar System, Titan boasts a thick, nitrogen‑rich atmosphere and a climate driven by a methane cycle that produces clouds, rain, rivers, lakes, and even seas of liquid hydrocarbons. This exotic environment has long...

uncertain. Titan and Pluto occupy dramatically different niches in the solar system—Titan boasts a dense, hazy atmosphere, methane‑filled seas, and dunes rich in organic material, while Pluto is a frigid world with a tenuous atmosphere far beyond...

is their role as conduits for hazardous emissions. Collectively, they are estimated to vent 2.6 million metric tons of methane annually, a potent greenhouse gas that traps atmospheric heat far more efficiently than carbon dioxide. Beyond climate...

traversal over its frozen terrain. Researchers also highlighted the moon’s hydrocarbon‑driven weather, which includes methane rain, rivers, lakes, and seasonal storms. While these conditions pose operational challenges, they also promise unique...

The puzzle deepens because earlier observations with the James Webb Space Telescope found no surface ices of nitrogen, methane or carbon monoxide on 2002 XV93—volatile compounds that normally fuel Pluto’s atmosphere when heated. Surface temperatures are...

in existing planetary datasets. Pluto and Titan are strikingly different worlds, yet both host atmospheres rich in methane and nitrogen. The authors argue that the mysterious absorption most likely originates from surface material rather than...

gases by measuring starlight filtered through a planet’s limb during transit. This method has already revealed hydrogen, methane and carbon dioxide in a range of distant worlds. Translating those atmospheric signatures into constraints on interior...

base of the cave’s trophic network are chemosynthetic bacteria that harvest energy from compounds such as hydrogen sulfide, methane, and ammonium. These microbes form thick mats on rock walls, submerged surfaces, and the cave floor, providing the...

chemical signatures. By analyzing wavelengths below 850 nanometers, researchers hope to identify the presence of water, methane, and oxygen—key markers of habitability. Airapetian noted that the system is particularly well-suited for studying active...

solids may accumulate along the stream or shoreline, forming filthy gray-black sludge bars that emit large quantities of methane gas. Swimming beaches may be adversely affected by the accumulation of greasy substances and partially decomposed chemical...

may reflect a different chemical balance. By measuring molecules such as carbon dioxide, water vapor, carbon monoxide, and methane, astronomers can estimate atmospheric carbon-to-oxygen ratios. These values help reconstruct the planet’s formation...

alter the original redox balance. Multi-panel figure showing taxonomic and sequence characteristics of fungi isolated from methane producing Antrim Shale wells ©The ISME Journal Earlier investigations have identified methane‑producing archaea within the...

the shallowest sample to 112,000 mg L⁻¹ in the deepest, reflecting a gradient from relatively fresh to highly saline water. Methane comprised 86 % to 97 % of the gases measured, and isotopic signatures suggest that most of this methane originated from...

a prime candidate for deeper spectroscopic studies aimed at uncovering other gases such as water vapor, carbon dioxide, or methane. Robin Wordsworth, Gordon McKay Professor of Environmental Science and Engineering at Harvard, reflected on the field’s...

signatures of various gases. Researchers will look for potential biosignatures—combinations of molecules such as oxygen, methane, and water vapor that might indicate biological processes. While the detection of such gases would be intriguing, scientists...

estimates. Potential Fading of Pluto’s Haze Layers Pluto’s atmosphere consists mainly of nitrogen, with trace amounts of methane and carbon monoxide. Photochemical reactions among these gases generate the hazy layers first visualized by New Horizons....

sediments beneath a primordial sea. Thermal alteration by the magma converted the buried organics into hydrocarbons such as methane and propane. These gases migrated upward, encountering zones inhabited by methanotrophic microbes. The resulting...