Physicists from TU Delft, ETH Zürich and the University of Tübingen have built a quantum scale heat pump made from particles of light. This device brings scientists closer to the quantum limit of measuring radio frequency ...
Optics & Photonics
Aug 26, 2022
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1691
The subsurface of Mars records important historical information on the formation and evolution of the planet. As an ionized medium, the Martian ionosphere plays a special role in radio wave propagation and is directly related ...
Space Exploration
Aug 18, 2022
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33
Astronomers have discovered thousands of exoplanets in recent years. Most have them have been discovered by the transit method, where an optical telescope measures the brightness of a star over time. If the star dips very ...
Astronomy
Aug 17, 2022
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56
A team of astronomers has developed a method that will allow them to "see" through the fog of the early universe and detect light from the first stars and galaxies.
Astronomy
Jul 21, 2022
5
204
Bad wireless reception, the noise in the radio signal or poor visibility in the fog—all these annoyances have to do with the fact that waves such as visible light or microwave signals are deflected and reflected by numerous ...
General Physics
Jul 14, 2022
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374
Sometime around 400 million years after the birth of our universe, the first stars began to form. The universe's so-called dark ages came to an end and a new light-filled era began. More and more galaxies began to take shape ...
Astronomy
Jul 13, 2022
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264
Communications across the vastness of interstellar space could be enhanced by taking advantage of a star's ability to focus and magnify communication signals. A team of graduate students at Penn State is looking for just ...
Astronomy
Jul 6, 2022
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239
A Virgin Orbit rocket carrying seven U.S. Defense Department satellites was launched from a special Boeing 747 flying off the Southern California coast and streaked toward space Friday night.
Space Exploration
Jul 2, 2022
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40
In the decades-long search for extraterrestrial intelligence, there has never been confirmed evidence of an alien signal. There have, however, been a few tantalizing mysteries. Perhaps the greatest of these is known as the ...
Astronomy
Jun 23, 2022
3
69
Researchers at the National Institute of Standards and Technology (NIST) have boosted the sensitivity of their atomic radio receiver a hundredfold by enclosing a small glass cylinder of cesium atoms inside what looks like ...
Quantum Physics
May 23, 2022
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39
