For the first time, the James Webb Space Telescope has observed the chemical signature of carbon-rich dust grains in the early universe.
Astronomy
Jul 19, 2023
17
163
Fires in the wildland-urban interface (WUI) emit more toxic smoke than wildfires burning in natural vegetation, due to the chemicals in the structures, vehicles, and other manufactured goods that burn in fires in areas of ...
Earth Sciences
Jun 21, 2023
0
4
The combined emissions of metals and other environmentally hazardous substances from ships is putting the marine environment at risk according to a new study from Chalmers University of Technology, Sweden. When the researchers ...
Environment
Jun 13, 2023
0
8
The end-Permian mass extinction (EPME) that occurred ～252 million years ago was the most severe extinction event of the Phanerozoic, devastating both marine and terrestrial ecosystems, with the loss of ～81% and ～89% ...
Earth Sciences
May 22, 2023
0
7
Improved cookstoves, which are widely used for cooking in developing countries, produce twice as many harmful ultrafine air pollution particles (PM0.1) as conventional stoves, according to a new study from the University ...
Environment
May 11, 2023
0
2
Polycyclic aromatic hydrocarbons (PAHs) are typical organic compounds found in cigarette smoke and vehicle exhaust. In addition, PAHs are produced from incomplete combustion of organic material and cooking. The highest concentrations ...
Biochemistry
Apr 24, 2023
0
47
The soot produced by unburnt hydrocarbon flames is the second largest contributor to global warming, while also harming human health. Researchers have developed state-of-the-art, high-speed imaging techniques to study turbulent ...
Asteroid Ryugu has a rich complement of organic molecules, according to a NASA and international team's initial analysis of a sample from the asteroid's surface delivered to Earth by Japan's Hayabusa2 spacecraft. The discovery ...
Planetary Sciences
Feb 23, 2023
1
633
Researchers using NASA's James Webb Space Telescope are getting their first look at star formation, gas, and dust in nearby galaxies with unprecedented resolution at infrared wavelengths. The data has enabled an initial collection ...
Astronomy
Feb 16, 2023
0
47
It is a popular notion that aside from large celestial objects like planets, stars and asteroids, outer space is empty. In fact, galaxies are filled with something called the interstellar medium (ISM)—that is, the gas and ...
Astronomy
Feb 16, 2023
0
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