Metamaterials, which are engineered to have properties not found in nature, have long been developed and studied because of their unique features and exciting applications. However, the physics behind their thermal emission ...
Condensed Matter
May 5, 2020
0
536
Astronomers from Nanjing University in China have detected gamma ray emission from two star-forming galaxies designated M33 and Arp 299. The finding, which is detailed in a paper published March 17 on arXiv.org, could be ...
Finding new semiconductor materials that emit light is essential for developing a wide range of electronic devices. But making artificial structures that emit light tailored to our specific needs is an even more attractive ...
Nanophysics
Feb 18, 2020
0
121
Using ESA's XMM-Newton spacecraft, astronomers have investigated the nature of a peculiar pulsar wind nebula (PWN) in the supernova remnant (SNR) CTB 87. Results of the study, presented in a paper published November 26, shed ...
The Trump administration is planning to roll back several key climate-change regulations from previous administrations, including ones requiring reduced methane emissions, much stricter fuel efficiency/vehicle pollution standards, ...
Environment
Sep 11, 2019
1
16
In discussions of anthropogenic climate change, carbon dioxide generally gets the spotlight, but it is not the only greenhouse gas spewed into the atmosphere by human activity, nor is it the most potent.
Environment
Aug 12, 2019
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170
A nighttime arrival at Amsterdam's Schiphol Airport flies you over the bright pink glow of vegetable production greenhouses. Growing crops under artificial light is gaining momentum, particularly in regions where produce ...
Plants & Animals
Jul 22, 2019
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9
Researchers drew attention three years ago when they reported that a two-dimensional perovskite—a material with a specific crystal structure—composed of cesium, lead and bromine emitted a strong green light. Crystals ...
Condensed Matter
Jun 24, 2019
0
0
It's no surprise Western Australia has a lot of sunshine. But what are we doing with it?
Materials Science
Jun 6, 2019
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4
By analyzing archival data from the Suzaku X-ray satellite, astronomers have learned important information regarding thermal and non-thermal emission from the composite supernova remnant (SNR) designated MSH 15-56. Results ...
