Spring snow, sparkling in the sun, can reveal more than just good skiing conditions
One might think that snow, of all things, is easy to describe: it is cold, white and covers the landscape like a blanket. What else is there to say about it?
One might think that snow, of all things, is easy to describe: it is cold, white and covers the landscape like a blanket. What else is there to say about it?
Earth Sciences
Apr 25, 2024
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To study living organisms at ever smaller length scales, scientists must devise new techniques to overcome the so-called diffraction limit. This is the intrinsic limitation on a microscope's ability to focus on objects smaller ...
Biotechnology
Apr 22, 2024
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Light can compute functions during its propagation and interaction with structured materials, with high speed and low energy consumption. Achieving universal computing using all-optical neural networks requires optical activation ...
Optics & Photonics
Mar 19, 2024
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If you explore the night sky it won't be long before you realize there is a lot of dust and gas up there. The interstellar dust between the stars accounts for 1% of the mass of the interstellar medium but reflects 30% of ...
Astronomy
Mar 1, 2024
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This image from the NASA/ESA Hubble Space Telescope is teeming with color and activity. It features a relatively close star-forming region known as IRAS 16562-3959, which lies within the Milky Way about 5,900 light-years ...
Astronomy
Feb 17, 2024
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This new NASA Hubble Space Telescope view shows the globular cluster NGC 2298, a sparkling collection of thousands of stars held together by their mutual gravitational attraction. Globular clusters are typically home to older ...
Astronomy
Feb 14, 2024
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Supercontinuum (SC) white light (the spectrum stretching from the near ultraviolet to the infrared wavelengths) has advanced ultrafast laser spectroscopy in condensed matter science, biology, physics and chemistry. Compared ...
Optics & Photonics
Feb 8, 2024
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Laser-based absorption spectroscopy is an important method for determining the concentration of gas components in a sample. Modern devices are highly specialized for detecting very specific gases, such as trace gases in the ...
Optics & Photonics
Jan 9, 2024
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The Webb telescope has opened a new window onto the universe, but it builds on missions going back 40 years, including Spitzer and the Infrared Astronomical Satellite.
Astronomy
Dec 29, 2023
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The way astronomers study planets in our own solar system is surprisingly similar to the way they study exoplanets, despite the latter being orders of magnitude more distant. The key is spectroscopy—examining the wavelengths ...
Planetary Sciences
Dec 18, 2023
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