Ancient kauri tree log from Ngawha, New Zealand. Credit: Nelson Parker Radiocarbon measurements on the remains of 42,000-year-old New Zealand kauri trees provide the basis for better calibration of geological archives of this period. The last complete reversal of the Earth’s magnetic field, the so-called Laschamps event, took place 42,000 […]

Nearly 42,000 years ago, when Earth’s magnetic fields reversed, this triggered major environmental changes, extinction events, and long-term changes in human behavior, a new study reports. The findings, made possible by a new radiocarbon record derived from New Zealand’s ancient kauri trees, raise important questions about the evolutionary impacts of […]

A transmitted light view through a 200-micron section of a peridotite sample, showing the three main minerals — olivine (clear-green), orthopyroxene (grey-green) and garnet (pink). Credit: Dr. Emma Tomlinson, Trinity College Dublin. Geologists have developed a new theory about the state of Earth billions of years ago after examining the […]

Linum bienne is the closest relative to cultivated flax. Credit: University of Portsmouth Scientists from the University of Portsmouth and Royal Botanic Gardens, Kew, have come up with a formula to help plant breeders and farmers around the world grow crops in a more sustainable way. The new checklist, which was published […]

Glacier buttercup, Ranunculus glacialis, in front of the Rutor glacier, Italy. Credit: G. Losapio and coauthors Beyond the ski slopes, one of the most iconic symbols of the Alps are the alpine flowers. These plants are not only beautiful — they are also used in liqueurs and medicines, and they […]

Mead crater, the largest impact basin on Venus, is encircled by two rocky rings, which provide valuable information about the planet’s lithosphere. Credit: NASA At some point between 300 million and 1 billion years ago, a large cosmic object smashed into the planet Venus, leaving a crater more than 170 […]

Top left and the bottom right are Google Earth satellite images of the Brumadinho tailings dam taken before and after the collapse on 25 January 2019. Top right and bottom left show precursory movement across the dam (red and yellow colours), which the researchers analysed to find that the collapse […]

Soil on a chip experiments conducted by Princeton researchers mimic the interactions between soils, carbon compounds and soil bacteria, producing new evidence that large carbon molecules can potentially escape the soil much faster than previously thought. In this microscopy image, soil bacteria (red) grow around aggregates of glucose (green) that […]

Shiveluch volcano has had more than 40 violent eruptions over the last 10,000 years. The last gigantic blast occurred in 1964, creating a new crater and covering an area of nearly 100 square kilometers with pyroclastic flows. But Shiveluch is actually currently erupting, as it has been for over 20 […]