The planet Mars has gone through an ice age and is now warming up, scientists say. The findings are based on detailed radar measurements of ice caps on Mars. Isaac Smith studies the physical qualities of Earth and other planets -- or geophysics -- at the University of Texas. He told VOA about new research from scientists at universities in Texas, Colorado and Missouri. Their findings were published in the journal Science. Smith said Mars has ice ages, just like Earth has had. “The last ice age would have been about 600,000 years ago,” he told VOA. “And the next [ice age on Mars] is 500,000 [years] in the future.” Mars is often called the red planet. But, a few hundred thousand years ago, the scientists said, the planet was not so red. Their research suggests that Mars has been warming for the past 370,000 years.
Title: Was Mars -- The Red Planet -- Once White?
Content: <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/1131/white_audio.m4a' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Was Mars -- The Red Planet -- Once White?' data-article-id='1623'><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='7563'>The planet Mars has gone through an ice age and is now warming up, scientists say.</span> <span data-start-time='7563' data-end-time='15521'>The findings are based on detailed radar measurements of ice caps on Mars.</span> <span data-start-time='15521' data-end-time='25938'>Isaac Smith studies the physical qualities of Earth and other planets -- or geophysics -- at the University of Texas.</span> <span data-start-time='25938' data-end-time='36708'>He told VOA about new research from scientists at universities in Texas, Colorado and Missouri.</span> <span data-start-time='36708' data-end-time='42333'>Their findings were published in the journal Science.</span> <span data-start-time='42333' data-end-time='48667'>Smith said Mars has ice ages, just like Earth has had.</span> <span data-start-time='48667' data-end-time='57063'>“The last ice age would have been about 600,000 years ago,” he told VOA.</span> <span data-start-time='57063' data-end-time='64917'>“And the next [ice age on Mars] is 500,000 [years] in the future.”</span> <span data-start-time='64917' data-end-time='69792'>Mars is often called the red planet. </span> <span data-start-time='69792' data-end-time='78000'>But, a few hundred thousand years ago, the scientists said, the planet was not so red.</span> <span data-start-time='78000' data-end-time='86979'>Their research suggests that Mars has been warming for the past 370,000 years.</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/1131/mars_img.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=6445 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/what_does_ice_age_mean.m4a'>What does ice age mean?</div><div class='choices' data-correct-choice='time in the past when a large part of the planet was covered with ice'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/one_side_higher_than_the_other.m4a'><span>one side higher than the other</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/imaginary_line_around_the_earth.m4a'><span>imaginary line around the earth</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/time_in_the_past_when_a_large_part_of_the_planet_was_covered_with_ice.m4a'><span>time in the past when a large part of the planet was covered with ice</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/to_argue.m4a'><span>to argue</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=6446 data-hint-location='7563' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/what_are_the_findings_based_on.m4a'>What are the findings based on?</div><div class='choices' data-correct-choice='ice caps'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/plants.m4a'><span>plants</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/experiments.m4a'><span>experiments</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/predictions.m4a'><span>predictions</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/ice_caps.m4a'><span>ice caps</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=6447 data-hint-location='78000' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/research_suggests_that_mars_has_been__blank_.m4a'>Research suggests that Mars has been <span class='blank'>warming</span>.</div><div class='choices' data-correct-choice='warming'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/growing.m4a'><span>growing</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/warming.m4a'><span>warming</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/cooling.m4a'><span>cooling</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/1131/shrinking.m4a'><span>shrinking</span></div></div></div><div class='question-buttons'><button class='skip-button'></button><button class='hint-button'></button><button class='speak-button'></button></div></div></div>
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