Waiotapu, New Zealand
Imagine a harsh, inhospitable alien world where the surface is bubbling and contains bright orange and yellow swaths enshrouded in sublimely steamy mists. That should give you a pretty good picture of Waiotapu (sometimes rendered as Wai-O-Tapu), a thermal area of about 11 square miles (18 square kilometers) in New Zealand.
Steam and gases rising through the pool create bubbles of mud, at the site of what was once a volcano. While Waiotapu is a popular tourist spot, visitors are warned to stay on government-erected walkways, lest they fall through thin crust surfaces and risk being burned by hot geothermal gases or fluids, and inhaling possibly fatal concentrations of carbon dioxide and sulfur [source: New Zealand Department of Conservation].
Author's Note: 10 Places on Earth That Look Completely Alien
When I was young, I enthusiastically devoured a series of juvenile science fiction novels about a team of future space cadets led by the intrepid Tom Corbett. The depictions of other planets in the books bore little resemblance to reality — Venus, for example, was a hot and humid but otherwise Earth-like environment. But those books started me pondering about what other places in the cosmos must look like, and I've been thinking about that ever since. That curiosity made this assignment even more interesting for me, because I could at last see places on Earth that were comparable to the worlds conjured by my imagination.
- Australia.com. "The Pinnacles, Nambung National Park, Western Australia." Australia.com. (March 17, 2014) http://www.australia.com/explore/states/wa/wa-pinnacles-nambung-national-park.aspx
- Bordenstein, Sarah. "Rio Tinto, Spain." Carleton.edu. Jun. 21, 2013. (March 17, 2014). http://serc.carleton.edu/microbelife/topics/riotinto/index.html
- California Department of Parks and Recreation. "Red Rock Canyon SP." Parks.ca.gov. 2013. (March 20, 2014) http://www.parks.ca.gov/?page_id=631
- Choi, Charles Q. "Why Jupiter's Great Red Spot Has Lasted So Long." Space.com. Nov. 25, 2013. (March 17, 2014) http://www.space.com/23708-jupiter-great-red-spot-longevity.html
- Etosha National Park. "The Etosha Pan." Etoshanationalpark.org. (March 17, 2014) http://www.etoshanationalpark.org/etosha-pan
- McMurdo Dry Valleys. (March 15, 2014) http://www.mcmurdodryvalleys.aq/home
- Mother Nature Network. "Kilauea Volcano, Hawaii." MNN.com. (March 17, 2014)http://www.mnn.com/earth-matters/space/photos/10-places-on-earth-that-resemble-alien-planets/kilauea-volcano-hawaii
- NASA. "Atacama Desert (NASA Ames participation)." Nasa.gov. May 9, 2007. (March 17, 2014) http://www.nasa.gov/centers/ames/research/expeditions/atacama.html
- NASA Earth Observatory. Untitled page. Nasa.gov. (March 17, 2014) http://earthobservatory.nasa.gov/IOTD/view.php?id=2561
- National Geographic Traveler. "The Pinnacles (Western Australia)." National Geographic Traveler. (March 17, 2014) http://travel.nationalgeographic.com/travel/traveler-magazine/photo-contest/2012/entries/129472/view/
- National Park Service. "Craters of the Moon National Monument & Preserve: Geologic Activity." Nps.gov. (March 15, 2014) http://www.nps.gov/crmo/naturescience/geologicactivity.htm
- New Zealand Department of Conservation. "Waiotapu Thermal track." Govt.nz. (March 16, 2014) http://www.doc.govt.nz/parks-and-recreation/tracks-and-walks/bay-of-plenty/rotorua-lakes/waiotapu-thermal-track/
- Russo, Joe; Landsman, Larry; and Gross, Edward. "Planet of the Apes Revisited: The Behind-The-Scenes Story Of The Classic Science Fiction Saga." Thomas Dunne Books. 2001. (March 16, 2014) http://books.google.com/books?id=SnSqvH6RRSoC&q=arizona#v=onepage&q=forbidden%20zone&f=false
- Trivedi, Bijal P. "Scientists Return to Galápagos Sea Vents." National Geographic News. May 29, 2002. (March 17, 2014) http://news.nationalgeographic.com/news/2002/05/0529_020529_TVgalapagos.html
- U.S. Geological Survey. "Kilauea—Perhaps the World's Most Active Volcano." Usgs.gov. May 7, 2009. (March 16, 2014) http://hvo.wr.usgs.gov/kilauea/
- Vesilind, Priit J. "The Driest Place on Earth." Nationalgeographic.com 2003. (March 16, 2014) http://ngm.nationalgeographic.com/ngm/0308/feature3/
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