For years, Mars has been seen as a dry, lifeless planet. But there is growing evidence to suggest this was not always the case. Scientists have already collected evidence suggesting that Mars once had a lot of water. Now, European researchers say they have discovered the first evidence of a huge groundwater system that once existed below the planet’s surface. The European Space Agency, or ESA, says its Mars Express spacecraft helped discover the evidence. It said a new study provides the first geological proof that Mars once had a “planet-wide groundwater system.” The study was a project of researchers from Utrecht University in the Netherlands. Francesco Salese and his team studied images of 24 deep craters in the northern half of the Red Planet. These pictures were captured by ESA’s Mars Express orbiter, which was launched in 2003.
Title: Mars Researchers Find First Evidence of Planet-Wide Groundwater System
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/3206/24be67f1-ea07-4ec6-a935-740224279c01_hq__1_.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Mars Researchers Find First Evidence of Planet-Wide Groundwater System' data-article-id='3687'><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='6521'>For years, Mars has been seen as a dry, lifeless planet.</span> <span data-start-time='6521' data-end-time='13771'>But there is growing evidence to suggest this was not always the case.</span> <span data-start-time='13771' data-end-time='22583'>Scientists have already collected evidence suggesting that Mars once had a lot of water.</span> <span data-start-time='22583' data-end-time='36938'>Now, European researchers say they have discovered the first evidence of a huge groundwater system that once existed below the planet’s surface.</span> <span data-start-time='36938' data-end-time='48729'>The European Space Agency, or ESA, says its Mars Express spacecraft helped discover the evidence.</span> <span data-start-time='48729' data-end-time='60604'>It said a new study provides the first geological proof that Mars once had a “planet-wide groundwater system.”</span> <span data-start-time='60604' data-end-time='69500'>The study was a project of researchers from Utrecht University in the Netherlands.</span> <span data-start-time='69500' data-end-time='82292'>Francesco Salese and his team studied images of 24 deep craters in the northern half of the Red Planet.</span> <span data-start-time='82292' data-end-time='92771'>These pictures were captured by ESA’s Mars Express orbiter, which was launched in 2003.</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/3206/6B9A40DE-3469-47EE-A624-092416B5F099_cx0_cy5_cw0_w1023_r1_s.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=12472 data-hint-location='69500' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/what_is_a_crater.wav'>What is a crater?</div><div class='choices' data-correct-choice='a large hole in the ground'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/a_grocery_bag.wav'><span>a grocery bag</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/a_breed_of_cat.wav'><span>a breed of cat</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/a_large_hole_in_the_ground.wav'><span>a large hole in the ground</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/a_type_of_car.wav'><span>a type of car</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=12473 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/for_years_mars_has_been_seen_as_a_dry_lifeless_what.wav'>For years, Mars has been seen as a dry, lifeless what?</div><div class='choices' data-correct-choice='planet'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/star.wav'><span>star</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/country.wav'><span>country</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/state.wav'><span>state</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/planet.wav'><span>planet</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=12474 data-hint-location='13771' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/scientists_have_already_collected_evidence_suggesting_that_mars_once_had_a_lot_of__blank_.wav'>Scientists have already collected evidence suggesting that Mars once had a lot of <span class='blank'>water</span>.</div><div class='choices' data-correct-choice='water'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/whales.wav'><span>whales</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/water.wav'><span>water</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/soda.wav'><span>soda</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3206/trees.wav'><span>trees</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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