(Phys.org)—August 23, 2012 – Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have created an ultrathin, flat lens that focuses light without imparting the distortions of conventional ...
General Physics
Aug 24, 2012
7
1
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have spotted signs of a "hot spot" orbiting Sagittarius A*, the black hole at the center of our galaxy. The finding helps astronomers better understand ...
Astronomy
Sep 22, 2022
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485
A new optical effect in nanoscale disks of silicon, namely patterns of radiation that do not emit or scatter light, has been observed by A*STAR researchers and international collaborators. These modes, which have never before ...
General Physics
Jul 13, 2016
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126
(PhysOrg.com) -- For the first time, astronomers have found pristine clouds of the primordial gas that formed in the first few minutes after the Big Bang. The composition of the gas matches theoretical predictions, providing ...
Astronomy
Nov 10, 2011
22
0
Astronomers have used the National Science Foundation's Karl G. Jansky Very Large Array (VLA) and NASA's Spitzer Space Telescope to make the first measurement of wind speed on a brown dwarf—an object intermediate in mass ...
Astronomy
Apr 9, 2020
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1177
(PhysOrg.com) -- ESA's Venus Express spacecraft has discovered an ozone layer high in the atmosphere of Venus. Comparing its properties with those of the equivalent layers on Earth and Mars will help astronomers refine their ...
Space Exploration
Oct 6, 2011
0
0
(PhysOrg.com) -- Taking light control to a new level, scientists have proposed a technique for confining light into an area just 1/500th the size of the light's wavelength. Since funneling light through such tiny spaces enhances ...
In 1838, Friedrich Wilhelm Bessel won the race to measure the first distance to a star other than our Sun via the trigonometric parallax—setting the first scale of the universe.
Astronomy
Nov 20, 2020
7
450
An international research team led by Takuma Izumi, a second-year master's student of science at the University of Tokyo, and Kotaro Kohno, a professor at the University of Tokyo, successfully captured a detailed image of ...
Astronomy
Oct 24, 2013
104
0
Scientists have developed a technique to use quasars – powerful sources driven by supermassive black holes at the centre of galaxies – to study the universe's history and composition. To demonstrate the new method, based ...
Astronomy
Dec 4, 2015
1
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