NASA uses moonlight to improve satellite accuracy

NASA's airborne Lunar Spectral Irradiance, or air-LUSI, flew aboard NASA's ER-2 aircraft from March 12 to 16 to accurately measure the amount of light reflected off the Moon. Reflected moonlight is a steady source of light ...

Potential of leaking modes to reveal underground structure

Uncovering the geologic structure beneath Earth's surface is important for a variety of reasons, including identifying natural resources and studying earthquake hazards. Scientists image Earth's subsurface by observing seismic ...

Ocean heat is at record levels, with major consequences

The world witnessed record-breaking climate and weather disasters in 2021, from destructive flash floods that swept through mountain towns in Europe and inundated subway systems in China and the U.S., to heat waves and wildfires. ...

New epoch of miniaturized Cherenkov detectors

Recently, the research team led by Prof. Yu Luo from the school of Electrical and Electronic Engineering, Nanyang Technological University, discovered surface Dyakonov-Cherenkov radiation. This new type of Cherenkov radiation ...

Tiny swimming creatures can create big currents in lake water

Lakes are usually pictured as tranquil environments, largely uninfluenced by the enormous tidal power which drives the oceans. But the surface winds that act upon lakes can significantly alter the environment in which many ...

Ice lenses may cause many Arctic landslides

Climate change is driving periods of unusually high temperature across large swaths of the planet. These heat waves are especially detrimental in the Arctic, where they can push surface temperatures in regions of significant ...

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 ...

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