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Earth and Space Science

Science Current Events -- Part 2 -- June 18, 2014

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Matt Bobrowsky Matthew Bobrowsky 6410 Points

[size=100][b]Astronomy:[/b] [i]Galaxy Images Extended to Ultraviolet[/i] Astronomers previously captured long-exposure photos of galaxies in the direction of the constellation Fornax in visible and infrared light. Galaxies were revealed that are so far away that the light we see today left those galaxies over 10 billion years ago. Now new photos have been acquired in the ultraviolet part of the spectrum, which reveal the formation process of galaxies, particularly at their younger stages. The previous lack of information from ultraviolet light made studying the galaxies like trying to understand the history of families without knowing about the grade-school children. The addition of the ultraviolet fills in this missing range. [url=http://www.sci-news.com/astronomy/science-hubble-ultra-deep-field2014-01967.html]http://www.sci-news.com/astronomy/science-hubble-ultra-deep-field2014-01967.html[/url] [b]Science & Society[/b] [i]Thirst for water moves and shakes California[/i] In California’s Central Valley, removing groundwater to irrigate crops may trigger small earthquakes and uplift nearby mountains. California’s thirst for water is creating unrest. During the dry season, tiny earthquakes rattle the state. And GPS measurements show that its mountains have begun creeping higher, bit by bit. Scientists have linked the two phenomena to the heavy pumping of water from natural reserves below California’s Central Valley. The groundwater provides drinking water and irrigates some of the country’s most productive farms. All that water has a lot of mass. The ground acts similar to a mattress after you get out of bed. So removing all that water weight from beneath the Central Valley has allowed the ground nearby to rise back up. In California, that upward movement has taken the surrounding mountains with it. [url=https://student.societyforscience.org/article/thirst-water-moves-and-shakes-california]https://student.societyforscience.org/article/thirst-water-moves-and-shakes-california[/url] Cheers, Matt[/size] [size=80]====================================== Dr. Matthew Bobrowsky University of Maryland Tel: 443-812-5466 E-mail: [email protected] and MSB Science, LLC Tel: 443-812-5466 [email protected] [url=http://www.linkedin.com/in/mattbobrowsky]http://www.linkedin.com/in/mattbobrowsky[/url] ======================================[/size]

Amatulmuid Anderson Amatulmuid Anderson 1295 Points

Speaking of current events in space, check out this site. It is about tracking a meteor with a space craft. That should get your fourth gradrs excited about space. https://www.sciencenews.org/blog/science-ticker/rosetta-spacecraft-closing-comet-67pc-g For details about the manoeuvres required... http://blogs.esa.int/rosetta/

Jeffrey Lind Jeffrey Lind 1215 Points

Wow. How interesting! I just completed writing up a science unit on plate tectonics for my science methods class and have been looking for a way to incorporate current events into my lessons. This is a very fascinating article and a great opportunity to explore geological processes. My first thought when I saw California and "water" was that the article would be discussing drought or shortage, but this was a nice surprise.

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