Photodissociation

Scientists found atomic oxygen buried between two dominant currents in the hellish planet's atmosphere.

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have captured stunning new images of the Orion Nebula, a diffuse nebula located approximately 1,350 light-years away in the constellation of Orion.

Metal organic frameworks (MOFs) could deliver a major efficiency boost to the photocatalytic production of clean hydrogen. Chemical engineers have drafted a comprehensive overview of the state of their field and a plan for where it needs to focus.

The bonds between clusters of elements in the fourteenth group of the periodic table are known to be fickle. Ranging from the nonmetal carbon, to the metalloids silicon and germanium, to the metals tin and lead, all these elements share the same configuration of valence electrons—electrons in their atoms' outermost energy level.

Just because there's no mini-Neptune in our Solar System doesn't mean they're not common.

Photoelectrodes based on BiVO4 are considered top candidates for solar hydrogen production. But what exactly happens when they come into contact with water molecules? A study in the Journal of the American Chemical Society has now partially answered this crucial question: Excess electrons from dopants or defects aid the dissociation of water which in turn stabilizes so-called polarons at the surface. This is shown…

Hydroxyl radicals are highly reactive chemical species that attack most of the organic molecules.

Researchers recently proved a 90-year-old theory on why comets' heads, but never the tails, are green, by spectroscopic investigation of an accidentally-discovered deviation in the dicarbon molecule.

NASA's MAVEN mission and the Hubble Space Telescope have teamed up to reveal new insights into how Mars' water is leaking into space.

Many artists have tried to depict what Earth might have looked like billions of years ago, before life made its appearance. Many scenes trade snow-covered mountains for lava-gushing volcanoes and blue skies for lightning bolts pummeling what's below from a hazy sky.

The search for habitable exoplanets involves looking for planets with similar conditions to the Earth, such as liquid water, a suitable temperature range and atmospheric conditions. One crucial factor is the planet's position in the habitable zone, the region around a star where liquid water could potentially exist on the planet's surface.

The highly reactive oxygen shouldn't pose a threat to any future missions to the planet.

The potential for exposure to fluctuating light has necessitated that plants evolve protective mechanisms for when the light intensity exceeds photosynthetic capacity. Under these conditions, reactive oxygen species cause photoinhibition, which hinders photosynthetic efficiency. To counter this loss in photosynthetic efficiency, chloroplasts evolved thioredoxin (Trx) proteins that regulate redox balance within the…

Astronomers are working hard to understand biosignatures and how they indicate life's presence on an exoplanet. But each planet we encounter is a unique puzzle. When it comes to planetary atmospheres, carbon is a big piece of the puzzle because it has a powerful effect on climate and biogeochemistry. If scientists can figure out how and where a planet's carbon comes from and how it behaves in the atmosphere,…

The diminishing conventional energy resources based on fossil fuels and their related environmental consequences have drawn attention around the world toward the development of renewable energy resources. These renewable energy resources may not fulfill the entire energy demands of world's mass population; however, they limit the effects of greenhouse gases as well as air pollution caused by the fossil fuel…

Jupiter is well known for its spectacular aurorae, thanks in no small part to the Juno orbiter and recent images taken by the James Webb Space Telescope (JWST).

Photosynthesis is the process plants, algae and some bacteria use to turn sunlight, carbon dioxide and water into sugar and oxygen.

UNSW chemists have engineered a new molecular "vice," by including the rare metal osmium, that can bind methane for hours—providing crucial evidence for an intermediate step that will inform new catalysts to store, transport, or transform the gas into methanol and help to avert wastage of the gas worldwide.

In a recent study, scientists provide evidence of the effects of photodissociation on the quantum level for an atmospheric pollutant, formaldehyde, thereby showing photodissociation reactions can't be treated classically, like 'billiard-balls' coming together, colliding and reconnecting, said an author of a new study.

The European Space Agency released new photos on Monday of the Orion Nebula taken by the James Webb Space Telescope.