ScienceDaily: Astronomy News |
- Electric sparks may alter evolution of lunar soil
- Your toothpaste's fluorine formed in the stars
- Why NASA studies the ultraviolet sun
| Electric sparks may alter evolution of lunar soil Posted: 21 Aug 2014 07:24 AM PDT The moon appears to be a tranquil place, but new modeling suggests that, over the eons, periodic storms of solar energetic particles may have significantly altered the properties of the soil in the moon's coldest craters through the process of sparking -- a finding that could change our understanding of the evolution of planetary surfaces in the solar system. |
| Your toothpaste's fluorine formed in the stars Posted: 21 Aug 2014 07:23 AM PDT The fluorine that is found in products such as toothpaste was likely formed billions of years ago in now-dead stars of the same type as our sun, according to new research by astronomers. |
| Why NASA studies the ultraviolet sun Posted: 20 Aug 2014 03:28 PM PDT You cannot look at the sun without special filters, and the naked eye cannot perceive certain wavelengths of sunlight. Solar physicists must consequently rely on spacecraft that can observe this invisible light before the atmosphere absorbs it. |
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