Cygnus A is an elliptical galaxy around 600 million light years from the Earth, which has a supermassive black hole at its centre. It is one of the brightest sources of radio waves in the sky and was featured in Contact, ...
Astronomy
Jul 27, 2016
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Terahertz radiation, part of the frequency spectrum of light between microwaves and infrared, can pass through many materials and is potentially useful for applications such as airport security scanning. Commercial use of ...
General Physics
May 9, 2014
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Researchers have taken a major step towards bringing terahertz frequencies out of their hard-to-reach region of the electromagnetic spectrum and into everyday applications. In a new paper, the researchers demonstrate a first-of-its-kind ...
Optics & Photonics
Jan 27, 2022
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113
A team of physicists headed by Professor Sebastian Reineke of TU Dresden has developed a new method of storing information in fully transparent plastic foils. Their innovative idea has been published in Science Advances.
General Physics
Feb 4, 2019
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149
I am often asked how carbon dioxide can have an important effect on global climate when its concentration is so small—just 0.041% of Earth's atmosphere. And human activities are responsible for just 32% of that amount.
Environment
Sep 13, 2019
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(PhysOrg.com) -- NASA observatories have located strong infrared signals near the plane of the Milky Way, suggesting the possible presence of massive stars.
Astronomy
Apr 14, 2011
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VISTA's infrared capabilities have now allowed astronomers to see the myriad of stars in the Small Magellanic Cloud galaxy much more clearly than ever before. The result is this record-breaking image—the biggest infrared ...
Astronomy
May 3, 2017
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(PhysOrg.com) -- The Orion Nebula reveals many of its hidden secrets in a dramatic image taken by ESO’s new VISTA survey telescope. The telescope’s huge field of view can show the full splendour of the whole nebula and ...
Astronomy
Feb 10, 2010
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(PhysOrg.com) -- ESO's Very Large Telescope has delivered the most detailed infrared image of the Carina Nebula stellar nursery taken so far. Many previously hidden features, scattered across a spectacular celestial landscape ...
Astronomy
Feb 8, 2012
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A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays that are sometimes ...
Astronomy
Oct 29, 2012
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