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Large meteor lights up skies in Norway

Norwegian experts say an unusually large meteor was visible over large parts of southern Scandinavia and illuminated southeast Norway with a powerful flash of light for a few seconds as many observers were reported to also hear a roaring sound afterwards.

Now in 3D: Deep learning techniques help visualize X-ray data in three dimensions

Computers have been able to quickly process 2D images for some time. Your cell phone can snap digital photographs and manipulate them in a number of ways. Much more difficult, however, is processing an image in three dimensions, and doing it in a timely manner. The mathematics are more complex, and crunching those numbers, even on a supercomputer, takes time.

Hubble finds evidence of water vapor at Jupiter's moon Ganymede

Astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter's moon Ganymede. This water vapor forms when ice from the moon's surface sublimates -- that is, turns from solid to gas. Astronomers re-examined Hubble observations from the last two decades to find this evidence of water vapor.

Scientists discover how high-energy electrons strengthen magnetic fields

More than 99% of the visible universe exists in a superheated state known as plasma—an ionized gas of electrons and ions. The motion of these charged particles produces magnetic fields that form an interstellar magnetic web. These magnetic fields are important for a wide range of processes, from the shaping of galaxies and the formation of stars to controlling the motion and acceleration of...

How crushed rocks can help capture carbon dioxide

IIASA researchers and international colleagues explored the potential of using finely ground rock to help with the removal of CO2 from the atmosphere on the road to achieving net-zero emissions and keeping global warming below 1.5°C.

New methane concentration technologies for monitoring greenhouse gas emissions

Methane concentrations in the atmosphere have more than doubled over the last 150 years and mitigation of methane emissions will play a vital role in enabling climate change mitigation strategies. Understanding current and future methane inventories at a regional scale will be a key element in developing and implementing successful solutions. Current regional scale isotopic methane data is not...

The advantage of 2D metal-organic framework nanosheets in sensing applications

In recent years, fluorescent metal-organic frameworks (MOFs) have been demonstrated as a promising strategy for constructing sensors. However, most of the research studies on fluorescent MOF sensors have focused on the design and synthesis of three-dimensional (3D) MOF crystals on the order of micrometers and have not exerted the best detection performance of MOF structures. Two-dimensional (2D)...

Acoustic tweezers can pick up objects without physical contact

Researchers from Tokyo Metropolitan University have developed a new technology which allows non-contact manipulation of small objects using sound waves. They used a hemispherical array of ultrasound transducers to generate a 3D acoustic field that stably trapped and lifted a small polystyrene ball from a reflective surface. Their technique employs a method similar to laser trapping in biology, but...

Plastic accumulation in food may be underestimated

A new study has found plastic accumulation in foods may be underestimated. There is also concern these microplastics will carry potentially harmful bacteria such as E. coli, which are commonly found in coastal waters, up the food chain.

Did you solve it? Clueless sudoku

The solutions to today’s puzzlesEarlier today I set you three ‘clueless’ Sudoku and an ‘almost clueless’ Killer Sudoku. For discussion and tips you can read the original column here.For a printable page of all the puzzles click here. Scroll down for the solutions. Continue...