In rare good news for the environment, a UN report confirmed Monday that the hole in the ozone layer that had been threatening Earth since the 1980s is shrinking.
Environment
Jan 9, 2023
0
10
This sparkling new image depicts a small section of the Carina Nebula, one of the NASA Hubble Space Telescope's most-imaged objects. The Carina Nebula, NGC 3372, is an enormous cloud of gas and dust home to several massive ...
Astronomy
Dec 15, 2022
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41
A team of researchers affiliated with multiple institutions in China has used perovskite and quantum dots to build an ultraviolet radiation measurement device. The group describes their experiment in Matter.
In a first-of-its-kind study, a research team, including Northwestern University's Brian Hoffman and Ajay Sharma, found that ancient bacteria could survive close to the surface on Mars much longer than previously assumed. ...
Astrobiology
Oct 25, 2022
2
883
Broccoli, along with other plants and microorganisms, emit gases to help them expel toxins. Scientists believe these gases could provide compelling evidence of life on other planets.
Astrobiology
Oct 11, 2022
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89
A light-based, food sanitization technique successfully eliminated multiple harmful pathogens in a new study carried out by Penn State researchers.
Biotechnology
Aug 16, 2022
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225
Over the last 25 years, astronomers have found thousands of exoplanets around stars in our galaxy, but more than 99% of them orbit smaller stars—from red dwarfs to stars slightly more massive than our sun, which is considered ...
Astronomy
Aug 12, 2022
0
562
A team of researchers affiliated with several institutions in Germany and Austria reports that it is possible to use photoemission orbital tomography to detect σ orbitals. In their paper published in the journal Science ...
A team led by Prof. Toru Misawa of the School of General Education, Shinshu University found for the first time that the internal donut-shaped structure of the central nuclei of bright galaxies in the distant universe can ...
Astronomy
Jul 22, 2022
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110
This landscape of "mountains" and "valleys" speckled with glittering stars is actually the edge of a nearby, young, star-forming region called NGC 3324 in the Carina Nebula. Captured in infrared light by NASA's new James ...
Astronomy
Jul 12, 2022
0
1274
Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.
UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn, but the UV spectrum has many other effects, both beneficial and damaging, on human health.
This text uses material from Wikipedia, licensed under CC BY-SA
