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The emancipation of women is generally considered a modern phenomenon, but a new burial site in Lincolnshire has shown that females were already enjoying high social status, wealth and power in their own right during the Dark Ages.

Archaeologists at the University of Sheffield discovered 20 burials at a cemetery in Scremby, on the southern edge of the Lincolnshire wolds, dating back to the late fifth to mid sixth centuries AD. Around half the graves were females, who were found to be richly dressed and surrounded by riches including amber necklaces, hundreds of glass beads, silver buckles and ivory clasps.

Dr Hugh Willmott, Senior Lecturer in European Historical Archaeology from the https://www.sheffield.ac.uk/

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A team of scientists has discovered a single-site, visible-light-activated catalyst that converts carbon dioxide (CO₂) into “building block” molecules that could be used for creating useful chemicals. The discovery opens the possibility of using sunlight to turn a greenhouse gas into hydrocarbon fuels.

Every action creates an equal and opposite reaction. It’s perhaps the best known law of physics, and Guido Fetta thinks he’s found a way around it.

According to classical physics, in order for something—like a spaceship—to move, conservation of momentum requires that it has to exert a force on something else. A person in roller skates, for example, pushes off against a wall; a rocket accelerates upward by propelling high-velocity combusted fuel downward. In practice, this means that space vessels like satellites and space stations have to carry up to half their weight in propellant just to stay in orbit. That bulks up their cost and reduces their useful lifetime.

Scientists used to think a “warp bubble” would require an impractical amount of energy. That’s starting to change.

Fruit flies and a common energy drink ingredient may help explain how the brain regulates sleep and how that regulation can go wrong.

Imagine an airport where thousands of planes, empty of fuel, are left abandoned on the tarmac. That is what has been happening for decades with satellites that circle the Earth.

When satellites run out of fuel, they can no longer maintain their precise orbit, rendering them useless even if their hardware is still intact.

“It’s literally throwing away hundreds of millions of dollars,” Al Tadros, vice president of space infrastructure and civil Space at a company called SSL, said this month at a meeting in the US capital of key players in the emerging field of on-orbit servicing, or repairing satellites while they are in space.

Efforts are underway to drive down cost of using renewable energy.

Ancient continents were found under Antarctic ice, thanks to old data from a now-dead European satellite.

New analysis of data from the Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) mission has revealed rocky zones called “cratons” in the Earth’s lithosphere, a zone between our planet’s crust and mantle. GOCE plunged into Earth’s atmosphere five years ago this month after the craft ran out of orbital-maneuvering fuel. While scientists were unable to predict exactly where GOCE would fall, no debris dropped into populated areas.

The new fuel cell could be a cheaper, more practical way to generate energy to heat homes and eventually run cars.