Crushed space rocks hint at exoplanets’ early atmospheric makeup


Burning bits of ground-up meteorites may tell scientists what exoplanets’ early atmospheres are made of. A set of experiments baking the pulverized space rocks suggests that rocky planets had early atmospheres full of water, astrophysicist Maggie Thompson of the University of California, Santa Cruz reported January 15 at the virtual meeting of the American Astronomical […]

A global assessment of the impact of groundwater on ocean chemistry is important for understanding the weathering of rocks and its effects on climate — ScienceDaily

An invisible flow of groundwater seeps into the ocean along coastlines all over the world. Scientists have tended to disregard its contributions to ocean chemistry, focusing on the far greater volumes of water and dissolved material entering the sea from rivers and streams, but a new study finds groundwater discharge plays a more significant role […]

Warmer Climates Speed Breakdown of Rocks

Wetter and warmer climates accelerate mechanical rock weathering, according to new research. Findings by Eppes et al. reveal new links between climate and the breakdown of rocks, which affects the global carbon cycle—the movement of carbon between the oceans, atmosphere, and crust over geologic timescales. By listening over years for telltale sounds of […]

Glacier-dwelling bacteria thrive on chemical energy derived from rocks and water

Portage Glacier (right), Burns Glacier (center), and Shakespeare Glacier (left) in Southcentral Alaska, seen from the air. (USGS, Alaska Science Center/) In the darkness beneath glaciers, which range in thickness from less than a quarter mile to a full mile deep (or more), microbes cannot depend on sunlight for energy. Instead, many of these hardy […]

Chinese capsule with moon rocks begins return to Earth

This graphic simulation image provided by China National Space Administration shows the orbiter and returner combination of China’s Chang’e-5 probe after its separation from the ascender, at the Beijing Aerospace Control Center (BACC) in Beijing Sunday, Dec. 6, 2020. The Chinese probe that landed on the moon transferred rocks to an orbiter Sunday in preparation […]

Several billion-year-old rocks tell the story of the planet’s transition from alien landscape to one of continents, oceans, and ultimately life — ScienceDaily

A new study from scientists at Scripps Institution of Oceanography at UC San Diego and the University of Chicago sheds light on a hotly contested debate in Earth sciences: when did plate subduction begin? According to findings published Dec. 9 in the journal Science Advances, this process could have started 3.75 billion years ago, reshaping […]

Chinese probe prepares to return moon rocks to Earth

In this China National Space Administration (CNSA) photo released by Xinhua News Agency, a simulated image of the ascender of Chang’e-5 spacecraft blasting off from the lunar surface at the Beijing Aerospace Control Center (BACC) in Beijing on Dec. 3, 2020. The Chinese lunar probe lifted off from the moon Thursday night with a cargo […]

China is about to collect the first moon rocks since the 1970s

For the first time in almost half a century, scientists are going to get their hands on new moon rocks. The Chinese space agency’s Chang’e-5 spacecraft, which landed on the moon around 10:15 a.m. EST December 1, will scoop up lunar soil from a never-before-visited region and bring it back to Earth a few weeks […]

New Insights from the Magnetic Properties of Fault Rocks

Only a small volume of Earth’s crust is comprised of fault zones, but the processes of strain, deformation, and rupture that occur there have an outsized impact in terms of landscape change, infrastructure damage, and human cost when earthquakes occur. The physical and chemical characteristics of fault rocks, as well as their textures, […]

Wood filters, hot rocks, and seven other ways to purify water in the wild

A method for every occasion and level of emergency. (Tim MacWelch/) This story was originally featured on Outdoor Life. One of the top survival priorities in an emergency is to find and disinfect enough drinking water to supply your needs. Whether your crisis situation is unfolding in the desert after becoming lost or in your […]