Stars like the sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the sun shining steadily for about ...
Astronomy
Apr 1, 2024
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83
All particles that reach the atmosphere cause different chemical reactions. Particles come partly from natural sources such as volcanic eruptions and forest fires, and partly from pollution and emissions. Aerosol researcher ...
Earth Sciences
Oct 9, 2023
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5
We are exposed to ionizing radiation more often than we think: when we bathe in the sun, which emits UV rays, or when we get X-rayed. Even when we are traveling on an intercontinental flight, which reaches 10,000 meters above ...
Molecular & Computational biology
Aug 9, 2023
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45
Beachgoers are familiar with the experience of spending hours in the sun, going home, and noticing only hours later that their skin has changed color.
Molecular & Computational biology
Aug 2, 2023
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31
A new nanobarrier coating could help protect ultra-lightweight carbon composite materials from extreme conditions in space, according to a study from the University of Surrey and Airbus Defence and Space.
Space Exploration
Mar 21, 2023
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34
When NASA's Artemis 1 lunar mission takes off on August 29, on board will be four science experiments—including one from Canada.
Space Exploration
Aug 29, 2022
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8
The Solar Ultraviolet Imager, or SUVI, onboard NOAA's GOES-18 satellite, which launched on March 1, 2022, began observing the sun on June 24, 2022. SUVI monitors the sun in the extreme ultraviolet portion of the electromagnetic ...
Astronomy
Jul 21, 2022
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10
An international research team has used the X-ray laser European XFEL to gain new insights into how radiation damage occurs in biological tissue. The study reveals in detail how water molecules are broken apart by high-energy ...
Optics & Photonics
Dec 6, 2021
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15
Seabirds from Gough Island in the south Atlantic, Marion Island near Antarctica and the coasts of both Hawaii and Western Australia have a dangerous habit: eating plastic. Across 32 species of seabirds sampled from around ...
Plants & Animals
Oct 11, 2021
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38
Living beings are continuously exposed to harmful agents, both exogenous (ultraviolet radiation, polluting gases, etc.) and endogenous (secondary products of cellular metabolism) that can affect DNA integrity. That's why ...
Cell & Microbiology
Jun 17, 2021
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