A new study suggests Earth could have lost up to 60 percent of its atmosphere in the collision of space objects that created the moon. Most scientists believe this event happened about 4 billion years ago when Earth was still developing. They think a massive object, possibly the size of the planet Mars, hit the Earth, sending vaporized particles into space. Gravity is believed to have brought these particles together to form the moon. The study presents evidence that this collision might have caused Earth to lose between 10 to 60 percent of the atmosphere it had. A report on the study appeared in the publication Astrophysical Journal Letters.
Title: Study: Earth Lost Big Part of Atmosphere to Moon
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/4590/A.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Study: Earth Lost Big Part of Atmosphere to Moon' data-article-id='5117'><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='13479'>A new study suggests Earth could have lost up to 60 percent of its atmosphere in the collision of space objects that created the moon.</span> <span data-start-time='13479' data-end-time='24104'>Most scientists believe this event happened about 4 billion years ago when Earth was still developing.</span> <span data-start-time='24104' data-end-time='36500'>They think a massive object, possibly the size of the planet Mars, hit the Earth, sending vaporized particles into space.</span> <span data-start-time='36500' data-end-time='44313'>Gravity is believed to have brought these particles together to form the moon.</span> <span data-start-time='44313' data-end-time='57792'>The study presents evidence that this collision might have caused Earth to lose between 10 to 60 percent of the atmosphere it had.</span> <span data-start-time='57792' data-end-time='66458'> A report on the study appeared in the publication Astrophysical Journal Letters.</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/4590/A.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=16057 data-hint-location='24104' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/what_does_vaporize_mean.wav'>What does vaporize mean?</div><div class='choices' data-correct-choice='to turn a solid or liquid into a gas'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/to_turn_a_solid_or_liquid_into_a_gas.wav'><span>to turn a solid or liquid into a gas</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/to_stabilize.wav'><span>to stabilize</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/to_end_an_event.wav'><span>to end an event</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/to_run_fast.wav'><span>to run fast</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=16058 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/a_study_suggests_the_earth_could_have_lost_up_to_60_percent_of_its_atmosphere_when_it_collided_with_objects_that_created_the__blank_.wav'>A study suggests the Earth could have lost up to 60 percent of its atmosphere when it collided with objects that created the <span class='blank'>moon</span>.</div><div class='choices' data-correct-choice='moon'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/galaxy.wav'><span>galaxy</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/moon.wav'><span>moon</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/closest_star.wav'><span>closest star</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/sun.wav'><span>sun</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=16059 data-hint-location='13479' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/when_do_most_scientists_believe_this_collision_happened.wav'>When do most scientists believe this collision happened?</div><div class='choices' data-correct-choice='4 billion years ago'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/4_billion_years_ago.wav'><span>4 billion years ago</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/4_million_years_ago.wav'><span>4 million years ago</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/40_billion_years_ago.wav'><span>40 billion years ago</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4590/40_million_years_ago.wav'><span>40 million years ago</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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