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Earth and Space Science

Near Earth Objects

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Cris DeWolf Cris DeWolf 11965 Points

Here are a few more resources on near earth objects. 1. WISE (Widefield Infrared Survey Explorer) is currently part of a NASA project to look for NEO's. http://neo.jpl.nasa.gov/programs/neowise.html 2. http:/:www.spaceweather.com has information about NEO's near the bottom of the page. Thanks for starting this thread Adah.

Carolyn Mohr Carolyn Mohr 92316 Points

I think, in the Chicagoland area anyway, that I am more apt to get hit with some 'green ice' coming down from a toilet on a passing jet as it is taking off or landing, Adah. But I am always interested in outer space issues. Thanks for the links :-)

Betty Paulsell Betty Paulsell 48560 Points

Carolyn, Are you serious about "green ice"? Betty

Rodney Olson Rodney Olson 385 Points

It is definitely worthy to address NEOs in our curriculum. I have my high school astronomy students perform a cratering lab activity (see attachment), and I also have them perform impact simulations using this website: http://www.purdue.edu/impactearth/ (I've also included an attachment for this activity). I also discuss asteroid/comet impacts in my physics classes when discussing momentum, and I have my physics students analyze the scenario discussed in the movie Armageddon (I've also attached that activity). "It happened before...it will happen again. It's just a question of when." - opening credits of Armageddon

Cris DeWolf Cris DeWolf 11965 Points

Most certainly more will hit Earth. One did on January 2nd... http://www.skyandtelescope.com/news/Small-Asteroid-2014-AA-Hits-Earth-238481431.html ...and it was only ~ 22 hours after it was discovered. Thankfully, it was small and impacted with the atmosphere over the Atlantic, far from any landmass. It was so small it is doubtful that any of it made it to the ocean.

Rodney Olson Rodney Olson 385 Points

A 300 meter diameter asteroid will have a safe, yet close, flyby of Earth today. Watch it live online beginning at 9pm ET: http://www.nbcnews.com/#/science/space/huge-asteroid-fly-safely-earth-monday-watch-it-live-n32051 .

Dorothy Ginnett Dorothy Ginnett 28250 Points

For a 'near earth object' story of the asteroid impact that is hypothesized to have caused the end of Cretaceous Mass Extinction event, see The Day the Mesozoic Died (HHMI BioInteractive) http://www.hhmi.org/biointeractive/day-mesozoic-died

This video presents a compelling 30 min story (in 3 parts) of the scientists and the evidence trail that led to the discovery of the Chixulub asteroid crater.

Also, check out the free NSTA Science Object: Solar System - Asteroids, Comets and Meteorites http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/7/SCB-SS.3.1 for teacher background on these topics.

Dorothy

Tori Popoloski Tori Popoloski 1500 Points

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