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<div id='article-page'><div id='article-content' data-media-url='//news-app-staging.s3.amazonaws.com' data-base-url='//news-app-staging.herokuapp.com' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/B.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='New Method Could Turn Mars Water into Oxygen' data-article-id='5275'><script src='//news-app-staging.herokuapp.com/javascripts/getscripts.js'></script><link rel='stylesheet' href='//news-app-staging.herokuapp.com/stylesheets/article.css' type='text/css' /><div class='article'><p><span data-start-time='0' data-end-time='13229'>American researchers say they have invented a method that could use salty water on Mars to produce oxygen and fuel.</span> <span data-start-time='13229' data-end-time='24521'>Oxygen and fuel would both be important elements to support future human exploration activities on the Red Planet.</span> <span data-start-time='24521' data-end-time='32708'>Engineers at Washington University in St. Louis, Missouri, developed the new method.</span> <span data-start-time='32708' data-end-time='43771'> The method operates with electrolysis, a process that passes an electrical current through liquid, such as water.</span> <span data-start-time='43771' data-end-time='50250'>The machine the researchers created is called an electrolyzer.</span> <span data-start-time='50250' data-end-time='59604'>The researchers say it can separate salty water into oxygen and hydrogen gases.</span> <span data-start-time='59604' data-end-time='70146'>Oxygen would be needed for humans to breathe and hydrogen could be used to fuel spacecrafts and equipment.</span> <span data-start-time='70146' data-end-time='81250'>The team described the process in a study recently published in Proceedings of the National Academy of Sciences (PNAS).</span> </p></div><div class='control-buttons-sticky' style='display:none;'><div class='control-buttons'><button title='Back' class='back' disabled='disabled'></button><button title='Play' class='play' disabled='disabled'></button><button title='Pause' class='pause' style='display:none;'></button><button title='Forward' class='forward' disabled='disabled'></button><button class='finished-reading' style='display:none;'>Done</button></div></div></div><div id='article-media'><div id='media-image'><img src='https://news-app-production.s3.amazonaws.com/articles/4750/B.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=16463 data-hint-location='13229' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/what_is_another_name_for_mars.wav'>What is another name for Mars?</div><div class='choices' data-correct-choice='The Red Planet'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/the_red_planet.wav'><span>The Red Planet</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/the_main_star.wav'><span>The Main Star</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/the_blue_circle.wav'><span>The Blue Circle</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/sphere_hero.wav'><span>Sphere Hero</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=16464 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/what_was_the_main_theme_of_this_article.wav'>What was the main theme of this article?</div><div class='choices' data-correct-choice='a method that could use salty water on Mars to produce oxygen and fuel'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/a_method_that_could_use_salty_water_on_mars_to_produce_oxygen_and_fuel.wav'><span>a method that could use salty water on Mars to produce oxygen and fuel</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/building_homes_on_mars_to_build_a_settlement.wav'><span>building homes on Mars to build a settlement</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/using_astronauts_to_study_the_effects_of_time_travel.wav'><span>using astronauts to study the effects of time travel</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/the_study_of_weightlessness_in_space.wav'><span>the study of weightlessness in space</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=16465 data-hint-location='32708' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/the_process_that_passes_an_electrical_current_through_liquid_is_called__blank_.wav'>The process that passes an electrical current through liquid is called <span class='blank'>electrolysis</span>.</div><div class='choices' data-correct-choice='electrolysis'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/electrolysis.wav'><span>electrolysis</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/meditation.wav'><span>meditation</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/metamorphosis.wav'><span>metamorphosis</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4750/energizing.wav'><span>energizing</span></div></div></div><div class='question-buttons'><button 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