Gravitationally speaking, the universe is a noisy place. A hodgepodge of gravitational waves from unknown sources streams unpredictably around space, including possibly from the early universe.
Within atomic and laser physics communities, scientist John "Jan" Hall has become a key figure in the history of laser frequency stabilization and precision measurement using lasers. Hall's work revolved around understanding ...
Optics & Photonics
Jan 15, 2024
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Microscopic magnetic probes that change shape in response to their environment may greatly enhance magnetic resonance imaging (MRI). However, producing the probes, which are still experimental and have not yet been used in ...
Analytical Chemistry
Dec 20, 2023
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A team of astronomers has used asteroseismology, or the study of stellar oscillations, to accurately measure the distance of stars from the Earth. Their research examined thousands of stars and checked the measurements taken ...
Astronomy
Dec 15, 2023
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Experiments with single-photon detectors have revealed surprising statistics of light created via interactions with high-frequency sound waves.
Optics & Photonics
Nov 8, 2023
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A team lead by Department of Astronomy, Beijing Normal University, recently proposed a promising plan to detect gravitational waves (GWs) by putting seismometers on the moon's surface. Their research is published in the journal ...
Space Exploration
Nov 7, 2023
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Alaskans and visitors may be able to see an artificial airglow in the sky created by the High-frequency Active Auroral Research Program during a four-day research campaign that starts Saturday.
Planetary Sciences
Nov 3, 2023
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355
You may not realize it, but the Doppler effect is everywhere in our lives, from tracking the speed of cars with radar to locating satellites in the sky. It's all about how waves change their frequency when a source (like ...
Optics & Photonics
Oct 20, 2023
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321
University of Otago physicists have used a small glass bulb containing an atomic vapor to demonstrate a new form of antenna for radio waves. The bulb was "wired up" with laser beams and could therefore be placed far from ...
Optics & Photonics
Oct 18, 2023
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Astronomers using simulated data have produced a glimpse of the sky as it would appear in gravitational waves, cosmic ripples in space-time generated by orbiting objects. The image shows how space-based gravitational wave ...
Astronomy
Sep 20, 2023
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