All articles tagged with #hydrogen
A Nature Communications study led by Motohiko Murakami suggests hydrogen from early Earth became chemically bound inside the metallic core as iron hydrides, not as free gas or water. If hydrogen accounts for up to about 0.36% of the core’s mass, this could translate to roughly 45 oceans’ worth of water, implying Earth’s surface water may be just a fraction of a much larger deep-water inventory formed during planet formation.
NASA will conduct a second, full wet dress rehearsal (WDR-2) of the Space Launch System at Launch Complex 39B, loading more than 700,000 gallons of liquid hydrogen and liquid oxygen and counting down to a simulated T-0 around Feb. 19 after a Feb. 12 confidence test that yielded useful data but pointed to a ground equipment issue; a firm launch date will follow a successful WDR-2, with March 6 cited as the earliest possible window.
A Nature Communications study estimates Earth’s molten iron core could host a vast hydrogen reservoir—potentially the planet’s largest—amounting to about 0.07% to 0.36% of the core’s weight, equivalent to roughly nine to 45 hydrogen oceans. Using atom probe tomography and high-pressure iron experiments to mimic core formation, researchers examined how hydrogen interacts with silicon and oxygen under extreme conditions. If confirmed, this suggests Earth acquired most of its water during its early growth rather than via late comet deliveries and may relate to heat flow that helps power the magnetic field; however, the estimate relies on indirect methods with uncertainties, and further work is needed to refine the numbers.
South Africa’s MeerKAT radio telescope identified 49 previously unknown, gas-rich galaxies in under three hours by mapping neutral hydrogen, originally observing a single radio galaxy; the rapid census reveals how much of the nearby universe remains hidden and showcases the power of wide-field, data-driven surveys as groundwork for future SKA projects.
A study published in Nature warns that hydrogen, often seen as a clean energy source, may contribute to climate change by prolonging methane's presence in the atmosphere, thus slightly increasing global temperatures. The rise in hydrogen emissions, mainly from human activities like industrial leaks and fossil fuel use, indirectly enhances warming by reducing atmospheric detergents that break down methane, highlighting the need for a deeper understanding of hydrogen's role in climate dynamics.
The article discusses the global hydrogen budget, highlighting the current reliance on energy-intensive grey hydrogen, the potential shift towards green and blue hydrogen by 2030–2040, and the climate implications of hydrogen leakage, which acts as an indirect greenhouse gas. It presents a comprehensive analysis of hydrogen sources and sinks over the past three decades, estimates the recent decade's hydrogen budget, and projects future climate impacts, emphasizing the need for better data and understanding of hydrogen's role in the climate system.
Korean scientists have developed a new catalyst using MXene and nickel ferrite that can remove chloride ions during electrolysis, enabling hydrogen production from seawater and potentially making green hydrogen more sustainable and accessible by conserving freshwater resources.
Plug Power's stock surged 24% after H.C. Wainwright raised its price target to $7, citing rising electricity prices and the potential for green hydrogen to become more cost-competitive, despite mixed analyst ratings and high short interest that could lead to volatile price movements.
California's hydrogen industry faces a setback as the Biden administration cancels a $1.2 billion federal grant for a key hydrogen project, but state leaders and industry stakeholders remain optimistic about alternative funding and continued development, emphasizing California's commitment to clean energy despite federal setbacks.
A Swedish company, SSAB, has developed a near-zero carbon steel called SSAB Zero using hydrogen-reduced iron and renewable energy, in collaboration with GE Vernova, marking a significant step towards decarbonizing the steel industry and supporting global sustainability goals.
A new discovery from the WALLABY survey using the ASKAP telescope revealed a 160,000-light-year-long gas bridge between two dwarf galaxies, formed by tidal interactions, and a massive gas tail caused by ram pressure as the galaxies move through the Virgo cluster's hot gas, providing insights into the cosmic cycle of matter between galaxies and intergalactic space.
French researchers discovered the world's largest natural deposit of white hydrogen beneath Lorraine, France, containing an estimated 46 million tons, which could significantly advance Europe's clean energy transition and revitalize the local economy.
Scientists at SLAC and European XFEL unexpectedly created solid gold hydride by combining gold and hydrogen under extreme pressure and temperature, revealing new chemistry possibilities and insights into dense hydrogen relevant to planetary interiors and fusion energy research.
Tulum Energy rediscovered a 20-year-old methane pyrolysis process that produces hydrogen and carbon without emissions, leading to a $27M seed funding to develop a pilot plant in Mexico, aiming to offer cost-effective green hydrogen and carbon for industrial use.
Researchers in Japan have developed a cost-effective manganese oxide catalyst with a unique 3D structure that significantly increases hydrogen production efficiency and durability in water electrolysis, potentially replacing expensive rare metals like iridium in PEM electrolysers and advancing sustainable hydrogen energy.