Mysterious cloud 'absorbers' seen to drive Venusian albedo, climate
As planets in our solar system go, Venus is one for the textbooks.
Space Exploration
Aug 27, 2019
2
512
News tagged with ultraviolet radiation
Blue 'noctilucent' clouds are appearing further south than ever seen before, and pollution may be a cause
Cloud watchers have recently been given record-breaking glimpses of the rarest clouds in the skies. Stunning rippled blue clouds have been forming in the highest reaches of the atmosphere over Europe and the U.S.. These clouds ...
Earth Sciences
Jul 03, 2019
0
0
Space station mold survives high doses of ionizing radiation
The International Space Station, like all human habitats in space, has a nagging mold problem. Astronauts on the ISS spend hours every week cleaning the inside of the station's walls to prevent mold from becoming a health ...
Space Exploration
Jun 27, 2019
5
1
Video: The future of sunscreen begins with cuttlefish
The pigments in the skin of cephalopods, including squid, octopus, and cuttlefish, can absorb ultraviolet radiation.
Other
Jun 27, 2019
0
0
Rapid destruction of Earth-like atmospheres by young stars
The discoveries of thousands of planets orbiting stars outside our solar system has made questions about the potential for life to form on these planets fundamentally important in modern science. Fundamentally important for ...
Astronomy
Apr 24, 2019
5
778
CLASP-2: Investigating the magnetic solar chromosphere
Four years ago, an international team (USA, Japan and Europe) carried out an unprecedented suborbital space experiment called CLASP-1, motivated by theoretical investigations carried out at the IAC by Javier Trujillo Bueno ...
Astronomy
Apr 23, 2019
0
18
How severe drought influences ozone pollution
From 2011 to 2015, California experienced its worst drought on record, with a parching combination of high temperatures and low precipitation. Drought conditions can have complicated effects on ozone air quality, so to better ...
Environment
Apr 10, 2019
1
50
A light-based carrier system for CRISPR-Cas9 gene editing
A team of researchers from Nanjing and Xiamen Universities in China has developed an alternative to using viruses to transport CRISPR-Cas9 gene editing tools into a desired cell—and it involves two types of light. In their ...
What ionized the universe?
The sparsely distributed hot gas that exists in the space between galaxies, the intergalactic medium, is ionized. The question is, how? Astronomers know that once the early universe expanded and cooled enough, hydrogen (its ...
Astronomy
Mar 25, 2019
96
392
Earth's atmosphere stretches out to the moon – and beyond
The gaseous layer that wraps around Earth reaches up to 630,000 kilometers away, or 50 times the diameter of our planet, according to a new study based on observations by the ESA/NASA Solar and Heliospheric Observatory, SOHO, ...
Space Exploration
Feb 20, 2019
18
656
Ultraviolet
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
