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Representative Image. Summer solstice 2010. Photo Source: Vicki (CC BY-NC-ND 2.0)

Australia’s Summer Solstice 2024: Which Capital City Enjoys the Longest Daylight Hours?

The summer solstic arrives in Australia on Saturday, December 21, 2024, marking the longest period of daylight in the Southern Hemisphere. The exact moment occurs at 8:20 PM AEST, when Earth’s Southern

Karmactive Staff

December 21, 2024

Caption:At left: Steel is seen to corrode into siderite (FeCO3) when immersed in subcritical liquid carbon dioxide (LCO2). At right: Samples of albite (a plagioclase feldspar) and a sandstone core are observed to form red rhodochrosite (MnCO3) when exposed to supercritical CO2 in the presence of a water solution with potassium chloride and manganese chloride, with particularly strong reaction near the interface of the two solutions. In both experiments, water saturation is provided by floating LCO2 on the water. Under the lower pressure conditions characteristic of early Mars, the water would float on the LCO2. Credits:Photos courtesy of Todd Schaef/PNNL (left) and Earl Mattson/Mattson Hydrology (right).

Astronomy·Space

Liquid CO₂ May Have Shaped Mars’ Ancient Terrain, Not Just Water, Study Suggests

A new study published in Nature Geoscience proposes that liquid carbon dioxide, alongside water, may have shaped Mars’ ancient surface features and mineral composition. The perspective article, led by Michael Hecht, principal

Rahul Somvanshi

December 21, 2024

Representative Image. Nuna Child Car Seats. Photo Source: Nuna Baby

Business·News·USA

Nuna Recalls 608,786 Rava Car Seats Over Harness Defect—Is Your Child’s Safety at Risk?

The National Highway Traffic Safety Administration (NHTSA) announced that Nuna Baby Essentials is recalling 608,786 Rava child car seats manufactured between July 16, 2016, and October 25, 2023, due to a defective

Sunita Somvanshi

December 21, 2024

A 5,000-year-old tomb believed to belong to a prehistoric king was discovered in the Wangzhuang ruins. Credit: Xinhua

Archaeology·China

5,000-Year-Old Tomb in China Unearthed with Over 350 Artifacts

A 5,000-year-old tomb unearthed at the Wangzhuang ruins in Henan Province, China, provides evidence of an early prehistoric kingdom and complex social hierarchy. A team of archaeologists has uncovered over 300 artifacts

Govind Tekale

December 21, 2024

Representative Image. A dog having the medical check-up. Photo Source: Gustavo Fring (Pexels)

Health·News·USA

FDA Warns: Librela Linked to 3,600+ Adverse Reactions, Including Seizures and Deaths in Dogs

The Food and Drug Administration’s Center for Veterinary Medicine has issued an urgent warning about Librela, a widely-used injectable medication for dogs with osteoarthritis, following reports of severe adverse effects including deaths.

Tejal Somvanshi

December 21, 2024

Representative Image. Server Racks on Data Centers. Photo Source: Brett Sayles (Pexels)

Business·Energy·Sustainability

Google, Intersect Power, and TPG’s $20B Plan to Meet 160% Data Center Energy Demand Surge by 2030

A strategic partnership between Google, Intersect Power, and TPG Rise Climate aims to develop industrial parks housing data centers powered by co-located clean energy plants across the United States. The first phase

Sunita Somvanshi

December 21, 2024

Representative Image. Asian Giant Hornet. Photo Source: Animalia (CC BY-SA 3.0)

News·USA·Wildlife

Invasive ‘Murder Hornets’ Eradicated in U.S. After 5-Year Battle

The northern giant hornet (Vespa mandarinia) has been eradicated from the United States, the Washington State Department of Agriculture (WSDA) and United States Department of Agriculture (USDA) announced Wednesday. This elimination comes

Karmactive Staff

December 20, 2024

Representative Image. Gray Electric Car Parked on a Charging Bay. Photo Source: Kindel Media (Pexels)

Electric·Mobility

Quebec Bans New Gas-Powered Vehicle Sales by 2035, Aiming to Cut 43% of Emissions

Quebec has enacted regulations to ban the sale of new gasoline-powered vehicles by 2035, marking a decisive shift in the province’s transportation policy. The ban targets light-duty vehicles – cars, light trucks,

Govind Tekale

December 20, 2024

MIT chemical engineers designed a two-part catalyst that can convert methane gas to useful products. The catalyst consists of iron-modified aluminum silicate plus an enzyme called alcohol oxidase (enzyme not pictured). Credits:Credit: Courtesy of the researchers

Materials·Pollution

MIT Catalyst Converts Methane to Polymers at Room Temperature

Chemical engineers at MIT have developed a hybrid catalyst that converts methane into polymers at room temperature and atmospheric pressure. The research appears in Nature Catalysis. Methane contributes about 15% to global

Karmactive Staff

December 20, 2024

Dr. Scott Hinch. Photo credit: Pacific Salmon Ecology and Conservation Lab

Conservation·Marine Life

UBC Study: Up to 40% Mortality in Released Salmon—Hook Size and Handling Are Key Factors

The comprehensive UBC study provides insights into salmon survival rates after catch-and-release fishing – a practice that has become increasingly prevalent as salmon populations decline. The six-year investigation by UBC’s Pacific Salmon

Karmactive Staff

December 20, 2024