Researchers found that methane formed through reducing carbon in calcite at temperatures and pressures of about 1000 degrees F and less than 70,000 times atmospheric pressure. The study's implications are significant for the ecology and economy of our planet if abiogenic hydrocarbons are produced in the deep Earth.
An international team of scientists has successfully tested an integrated Mars life-detection strategy, finding evidence of even a single-cell organism. The experiment used specially adapted instruments to identify organic and mineralogical markers in Arctic hot springs, which resemble Martian environments.
Researchers analyzed tiny meteorite grains to determine the formation of aluminum oxide in AGB stars. The study found that both crystalline and amorphous forms are produced, clarifying observations and refining condensation modeling.
Scientists have determined for the first time how drought conditions can be quantified over large forest areas in the Amazon rainforest from space. Using a combination of ground-based and space-based tools, they found that satellite imaging can measure the physiology of the rainforest canopy with high accuracy.
Researchers have discovered that tissue cells in clusters of 4 and 8 can revert to a stem-cell state under specific conditions, working just as well as normal stem cells. This finding could provide a new approach for harnessing differentiated cells to enhance tissue repair, similar to animals that can regenerate lost parts.
Researchers at Carnegie Institution grow synthetic brilliant cut single-crystal diamonds with ultrahigh pressures, breaking measuring equipment. The crystals are up to 50% harder than conventional diamonds, offering a breakthrough in materials science.
The Gemini Deep Deep Survey has revealed a greater abundance of more massive and older galaxies than expected, dating back to the early universe. The discovery challenges current models of galaxy formation and suggests an accelerated growth phase for galaxies.
A new report finds that nitrogen availability is a critical factor in ecosystem carbon storage, with current limitations hindering the natural systems' ability to mitigate climate change. The study suggests that we need to incorporate these limits into our models and reduce our reliance on natural ecosystems to combat carbon emissions.
Researchers at Carnegie Institution's Geophysical Laboratory have created a super-hard form of graphite that can rival diamond in strength. The new material was made by subjecting graphite to extreme pressures and studying its atomic structure using high-intensity X-rays.
The Carnegie Institution's study found that elevated CO2 and nitrogen pollution reduced wildflower diversity, while increased water levels increased overall plant diversity. The four treatment combinations resulted in a decrease in wildflower species but an increase in grasses.
Researchers at Carnegie Institution and Stanford University used green fluorescent protein tagging to observe microtubule formation and movement in living plant cells. They found that most new microtubules are born at multiple sites directly at the cortex, and migrate around by growing at their leading ends.
A recent study found that gradual temperature increases cause significant decreases in crop productivity for corn and soybeans. Climate is identified as a crucial factor in crop yield trends, contradicting previous assumptions. The study's unique approach separates the effects of climate and technology on yield trends.
Researchers have successfully measured electrical resistance and magnetic properties of lithium under extreme conditions. The discovery reveals multiple transitions in the element's structure, reevaluating its properties.
Researchers use diamond anvil cells to test bacteria's survival under extreme pressure, finding they can withstand conditions similar to deep ocean trenches and the deep crust. The study's findings raise questions about the impact of pressure on life's evolution and expand our understanding of potential habitable niches beyond Earth.
A 6.5m telescope mirror is transported from the US to Chile's Atacama Desert, renowned for its stable and dry atmosphere, to conduct astronomical observations. The mirror will be installed as part of the Magellan Twin Telescope project at the Las Campanas Observatory, enabling studies of the Milky Way, star formation, and the universe.
Researchers analyzed fossilized eggshell samples to determine the impact of human activity on Australian ecology. They found that environmental factors other than climate have significantly influenced the continent over the past 65,000 years.
Researchers refute Garrett Hardin's 'Tragedy of the Commons' thesis, highlighting successful management through incentives, rules, and monitoring. Small groups and local autonomy are key to effective resource use.
Researchers at Carnegie Institution use X-ray diffraction to determine iron's elasticity at high pressures, which could explain seismic anisotropy in the inner core. The findings suggest the inner core is close to melting and may contain additional components with low shear-wave velocities.
Researchers at the Carnegie Institution for Science have isolated the protein that responds to UV-A/blue light, a crucial step in understanding plant growth and development. The discovery of NPH1 as the photoreceptor for phototropism has significant implications for agricultural research and future studies on plant development.
The Carnegie/Brookhaven team successfully directed interconversions of enzymes that modify plant fatty acids, revealing the chemical mechanisms responsible for their diversity. They achieved this through making as few as six amino acid changes, paving the way for the creation of novel synthetic enzymes.
Researchers at Carnegie Institution's Department of Terrestrial Magnetism discovered a statistically significant correlation between large magnitude earthquakes (M7.0+) and volcanic eruptions separated by up to 750 km, suggesting potential predictive capabilities for monitoring small deformations in active volcanoes.
Dinosaur tooth enamel holds secrets to ancient climate conditions, with new analysis suggesting middle latitudes may not have been warmer than today. Data from Madagascar indicates sub-tropical latitudes were warmer and more arid during the Late Cretaceous era.
Recent analysis of Mars data from the Mars Pathfinder Mission suggests that the C1 carbonaceous chondrite standard is incorrect, with Mars exhibiting a distinct elemental composition. This contradicts previous assumptions about the terrestrial planets' formation and density variations.
Scientists discover African Superswell is caused by hot mantle material rising from the core-mantle boundary, elevating southern Africa and driving tectonic plates. This phenomenon, known as dynamic topography, reveals a link between deep mantle dynamics and surface features.
A new study in Nature reveals that floor plate development occurs earlier and is driven by factors other than the notochord. This challenges the classic model of neural cell patterning, which posits a central role for Sonic hedgehog signaling.
Researchers use Hubble Space Telescope to track dense dust and gas in central regions of Seyfert galaxies, finding spiral arms that extend from the nucleus to the rest of the galaxy. This discovery suggests an alternative to stellar bar-driven fueling, requiring further theoretical modeling to fully understand the mechanism.
Researchers discover two related versions of the LOV domain in a plasma membrane protein, which shares significant similarity with domains from various organisms. The LOV domain may play a crucial role in regulating the phototropic response and other cellular processes.
Scientists have discovered that sulfur transforms into a superconductor at extremely high pressure, with a critical temperature of 10 K. The findings provide an important test for theories of superconductivity and could lead to new energy-related applications.
The pickle plant mutation retains embryonic cells in its root, storing oil, proteins, and starch. Gibberellin plays a crucial role in switching from embryonic to adult cell program, but its absence during early growth amplifies the effect.
Scientists have developed techniques to directly image the deformation of materials like diamond under ultrahigh pressures, showing that it can bend without failing. The results suggest ways to improve high-pressure techniques and reveal enhanced material strength at extreme pressures.
Researchers analyze slow earthquake signals at San Andreas Fault, revealing complex picture. The slow process was comparable to that of a regular earthquake, with total displacement across rupture surface of only a few centimeters.