Diamond holds up at pressures more extreme than those in Earth’s core

Diamond

Diamond stands up to a squeeze. Surprisingly, the material’s structure persists even when compressed to 2 trillion pascals, more than five times the pressure in Earth’s core, scientists report January 27 in Nature. The study suggests that diamond is metastable at high pressures: It retains its structure despite the fact that other, more stable structures […]

It’s a cosmic miracle that life on Earth’s lasted this long

Earth’s deserts are more inhabitable than entire planets and exoplanets. (Cerqueira/Unsplash/) Toby Tyrrell is a professor of Earth System Science at the University of Southampton. This story originally featured on The Conversation. It took evolution 3 or 4 billion years to produce Homo sapiens. If the climate had completely failed just once in that time […]

Earth’s outer shell ballooned during massive growth spurt 3 billion years ago

 Around 3 billion years ago, Earth‘s crust ballooned during a massive growth spurt, geoscientists have found. At that time, just 1.5 billion years after Earth formed, the mantle — the layer of silicate rock between the crust and the outer core that was more active in the past — heated up, causing magma from that […]

Climate change will alter the position of the Earth’s tropical rain belt

Credit: Pixabay/CC0 Public Domain Future climate change will cause a regionally uneven shifting of the tropical rain belt—a narrow band of heavy precipitation near the equator—according to researchers at the University of California, Irvine and other institutions. This development may threaten food security for billions of people. In a study published today in Nature Climate […]

Modeling Earth’s Ever-Shifting Magnetism – Eos

On a day-to-day basis, most of us probably take for granted how much Earth’s deep inner workings affect some of modern life’s conveniences, like the relative ease with which we find our way from place to place by plane, boat, or automobile or on foot. Roughly 2,900 kilometers below the planet’s surface, convection […]

Earth’s oceans are storing record-breaking amounts of heat

sea ice

Pandemic-related shutdowns may have spared Earth’s atmosphere some greenhouse gas emissions last year, but the world continued to warm. Water temperature measurements from around the globe indicate that the total amount of heat stored in the upper oceans in 2020 was higher than any other year on record dating back to 1955, researchers report online […]

Like plants do: non-classical photosynthesis by earth’s inorganic semiconducting minerals

IMAGE: Earth-abundant minerals convert sunlight into chemical energy, hinting at the evolution of photosynthesis in early bacteria view more  Credit: Earth Science Frontiers Photosynthesis, the process by which plants and other organisms convert sunlight into chemical energy, has been a major player during the evolution of life and our planet’s atmosphere. Although most of the ins […]

Modeling the Creation of Cratons, Earth’s Secret Keepers

The continents, the solid blocks of land beneath our feet, weren’t always as strong as they’ve come to be. Now, scientists from Monash University in Australia have devised a new mechanism to explain how the roots of the continents—cratons—came to be. Using numerical models to simulate the conditions of Archean era Earth, the […]

Peter Raven addresses earth’s dwindling resources, the value of science-informed outreach

The BioScience Talks podcast features discussions of topical issues related to the biological sciences. In a career-spanning installment of the journal BioScience‘s In Their Own Words oral history series, Missouri Botanical Garden President Emeritus Peter Raven illuminates numerous topics, sharing insights related to the sustainability of human civilization, the COVID-19 pandemic, and the importance of […]