Australian fossil suggests photosynthesis evolved at least 1.75 billion years ago
The oldest evidence of photosynthetic structures reported to date has been identified inside a collection of 1.75-billion-year-old microfossils, a Nature paper reveals. The discovery helps to shed light on the evolution of oxygenic photosynthesis......»»
Nearly three years since launch, Webb is a hit among astronomers
Demand for observing time on Webb outpaces supply by a factor of nine. From its halo-like orbit nearly a million miles from Earth, the James Webb Space Telescope is seeing farther.....»»
Assessing the efficacy of clinical drugs targeting SARS-CoV-2 main protease
Over the last few years, the SARS-CoV-2 virus, responsible for COVID-19, has undergone significant changes, evolving from the original wild-type strains to the highly transmissible omicron variant......»»
Australian dragon study reveals surprising link between motor systems control and sleep rhythms
Sleep is one of the most mysterious, yet ubiquitous components of our biology. It has been described in all major groups of animals, including worms, jellyfish, insects or cephalopods, and in all vertebrates, from fish to humans. Common characteristi.....»»
Ancient unicellular organism indicates embryonic development might have existed prior to animals" evolution
Chromosphaera perkinsii is a single-celled species discovered in 2017 in marine sediments around Hawaii. The first signs of its presence on Earth have been dated at over a billion years, well before the appearance of the first animals......»»
Locally optimized urban form can reduce carbon dioxide emissions
Research suggests that urban areas could reduce their carbon dioxide (CO2) emissions by optimizing their urban form. However, the relationship between urban form and emissions is highly context-dependent and generalizations cannot be made......»»
Asset owners could drive investment in climate change mitigation, research suggests
Asset owners who control substantial capital in the financial system through pension funds, endowments, foundations, and individual holdings can play a crucial role in driving investments in climate change mitigation, according to a new Yale School o.....»»
Siri better watch out. Samsung just launched its biggest Bixby update in years
Samsung's Bixby has been lagging behind Siri for years. It looks like that is finally changing......»»
Generation gaps: How much faster Apple Silicon gets with each release
Apple Silicon speed has steadily improved since the debut in 2020. Here's how much faster Apple has made its chips in just four years.M4 is Apple's latest chips - Image credit: AppleChip generations tend to improve with age. As designs get better and.....»»
How to use iPad in portrait with Sidecar with macOS Sequoia
Apple has finally updated Sidecar to allow you to extend your Mac screen onto an iPad when it's in portrait, not just landscape. For now, though, it's fiddly, but here's how to do it.We've only waited five years for Sidecar to recognise an iPad in po.....»»
States’ Abortion Rights Wins May Be Short-Lived Under a Second Trump Term
More than two years after a historic Supreme Court decision ended the national right to an abortion, some states are fighting back—but the future of abortion rights remains in doubt......»»
Soundtracks in toy ads shape gender stereotypes, study suggests
A study from Queen Mary University of London reveals that the music and soundscapes used in toy commercials are reinforcing rigid gender norms, shaping the way children perceive masculinity and femininity. The research uncovers how gender stereotypes.....»»
Biologists discover how plants evolved multiple ways to override genetic instructions
Biologists at Washington University in St. Louis have discovered the origin of a curious duplication that gives plants multiple ways to override instructions that are coded into their DNA. This research could help scientists exploit a plant's existin.....»»
The high cost of complexity: New study explores energy needs of multicellular life
Between 1.8 billion and 800 million years ago, earthly life was in the doldrums. During this period, called the "boring billion," the complexity of life remained minimal, dominated by single-celled organisms with only sporadic ventures into multicell.....»»
More families purchased school meals after federal nutrition policies enacted, research suggests
Families purchased more school lunches and breakfasts the year after the federal government toughened nutritional standards for school meals. A new University of California, Davis, study suggests that families turned to school lunches after the Obama.....»»
Microbial slime: The ultimate system to understand our planet
Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, and very high concentrations of carbon dioxide in the atmosphere. Yet, under these conditions, biofilms formed and within thes.....»»
Food security in Africa: Managing water will be vital in a rapidly growing region
Sub-Saharan Africa's population is growing at 2.7% per year and is expected to reach two billion by the year 2050. The region's urban population is growing even faster: it was at 533 million in 2023, a 3.85% increase from 2022......»»
Bioinspired hydrogels harness sunlight: A step closer to artificial photosynthesis
Mimicking how plants convert sunlight into energy has long been a dream for scientists aiming to create renewable energy solutions. Artificial photosynthesis is a process that seeks to replicate nature's method, using sunlight to drive chemical react.....»»
Volcanic ash as a source of nutrients: How the Hunga Tonga eruption affected ecosystems in the South Pacific
The eruption of Hunga Tonga-Hunga Ha'apai (HTHH) in January 2022 ejected about 2.9 billion tons of volcanic material into the atmosphere and across the South Pacific. In early 2022, a scientific expedition (GEOTRACES GP21) investigated the impact of.....»»
The extreme floods that devastated Spain are hitting more often. Is Australia ready for the next one?
Spain is still reeling from recent floods in the Valencia region. In some areas, a year's worth of rain fell in a single day. Sudden torrents raced through towns and cities. More than 200 people are dead. Rapid analysis suggests daily rainfall extrem.....»»
Extreme weather already cost vulnerable island nations US$141 billion—and 38% is attributable to climate change
Two years ago, when the curtain fell on the COP27 summit in Sharm El Sheikh, Egypt, developing nations on the frontline of climate change had something meaningful to celebrate......»»