Scientists say they have identified the oldest solid material on Earth, stardust believed to have formed about 7 billion years ago. It was found in pieces of meteorite that fell out of the sky in Australia 50 years ago.
Title: Oldest Material Discovered on Earth: 7 Billion Year Old Stardust
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/4008/3.21.20a.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Oldest Material Discovered on Earth: 7 Billion Year Old Stardust' data-article-id='4547'><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='14333'>Scientists say they have identified the oldest solid material on Earth, stardust believed to have formed about 7 billion years ago.</span> <span data-start-time='14333' data-end-time='24000'>It was found in pieces of meteorite that fell out of the sky in Australia 50 years ago.</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/4008/3.21.20a.jpg'/></div></div><div id='question-content' style='display:none;'><div class='multiple_choice_question question-container' data-question-id=14609 data-hint-location='14333' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/according_to_this_article_how_old_is_the_oldest_material_discovered_on_earth.wav'>According to this article, how old is the oldest material discovered on earth?</div><div class='choices' data-correct-choice='7 billion years old'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/2_billion_years_old.wav'><span>2 billion years old</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/7_billion_years_old.wav'><span>7 billion years old</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/100_million_years_old.wav'><span>100 million years old</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/7_billion_years_old.wav'><span>7 billion years old</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=14610 data-hint-location='14333' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/the_meteroite_described_in_this_article_was_discovered_in__blank_.wav'>The meteroite described in this article was discovered in <span class='blank'>Australia</span></div><div class='choices' data-correct-choice='Australia'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/the_moon.wav'><span>The moon</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/australia.wav'><span>Australia</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/the_sahara_desert.wav'><span>The Sahara Desert</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4008/antartica.wav'><span>Antartica</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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