For decades, scientists have theorized that beyond the edge of the solar system, at a distance of up to 50,000 AU (0.79 ly) from the sun, there lies a massive cloud of icy planetesimals known as the Oort Cloud. Named in honor ...
Astronomy
Aug 16, 2018
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(Phys.org)—Astronomers in Germany have developed an artificial intelligence algorithm to help them chart and explain the structure and dynamics of the universe around us with unprecedented accuracy. The team, led by Francisco ...
Astronomy
Sep 24, 2012
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0
(Phys.org)—An optical clock with neutral strontium atoms is considered one of the top candidates for the definition of a "new" second. The probabilities have increased considerably, since its frequency will now be determined ...
General Physics
Jan 9, 2013
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0
How soon after the Big Bang could water have existed? Not right away, because water molecules contain oxygen and oxygen had to be formed in the first stars. Then that oxygen had to disperse and unite with hydrogen in significant ...
Astronomy
Apr 28, 2015
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482
The Baryon Oscillation Spectroscopic Survey (BOSS), the largest component of the third Sloan Digital Sky Survey (SDSS-III), pioneered the use of quasars to map density variations in intergalactic gas at high redshifts, tracing ...
Astronomy
Apr 7, 2014
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0
The secret to building superconducting quantum computers with massive processing power may be an ordinary telecommunications technology—optical fiber.
Optics & Photonics
Mar 24, 2021
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4049
Researchers from the Physikalisch-Technische Bundesanstalt (PTB) have thoroughly analyzed the noise processes in their optical lattice clock with neutral strontium atoms. This analysis proves that their optical atomic clock ...
General Physics
Feb 10, 2016
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57
Researchers led by Delft University of Technology personnel have made two steps in the conversion of quantum states between signals in the microwave and optical domains. This is of great interest for connecting future superconducting ...
Quantum Physics
Oct 9, 2019
1
435
(PhysOrg.com) -- The last tests of the Ariane 5 rocket system have been finished and ESA's Planck satellite is sitting ready for launch at the Guiana Space Centre in Kourou. Together with ESA's space telescope Herschel, Planck ...
Astronomy
May 11, 2009
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6
Researchers have used a quantum processor to make microwave photons uncharacteristically sticky. They coaxed them to clump together into bound states, then found that these photon clusters survived in a regime where they ...
Quantum Physics
Dec 7, 2022
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