The European Space Agency, or ESA, recently released detailed information on almost 2 billion stars in the Milky Way galaxy. The data is being collected in an effort to create the most complete map yet of our galaxy. The data was gathered from ESA’s Gaia space observatory. Astronomers hope to use the data to better understand how stars are born and die, and how the Milky Way has changed over billions of years. The data includes new information like the age, size, temperature and chemical properties of stars. This information can be used, for example, to find out which stars were born in another galaxy and then moved to the Milky Way. “This is an incredible gold mine for astronomy,” said Antonella Vallenari. She helped lead a group of 450 scientists and engineers. They spent years turning the measurements collected by the space observatory into information that can be used. Gaia was also able to find more than 100,000 starquakes. ESA compared starquakes to large tsunamis that go across stars. They appear to make the stars’ brightness change for a very short period of time. The events let scientists measure the stars’ density, interior rotation and inside temperature, said astrophysicist Conny Aerts. The scientists have only collected information on about one percent of the Milky Way’s stars. But the Gaia mission is already providing enough information for about 1,600 scientific publications a year. Project scientist Timo Prusti said the large number of stars observed makes it more likely that scientists will make discoveries. “You have to observe a lot of objects in order to get the needle in the haystack,” he said.
Title: European Space Agency Releases Data on 2 Billion Stars
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/5557/A20.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='European Space Agency Releases Data on 2 Billion Stars' data-article-id='6156'><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='11229'>The European Space Agency, or ESA, recently released detailed information on almost 2 billion stars in the Milky Way galaxy.</span> <span data-start-time='11229' data-end-time='18688'>The data is being collected in an effort to create the most complete map yet of our galaxy.</span> <span data-start-time='18688' data-end-time='24833'>The data was gathered from ESA’s Gaia space observatory.</span> <span data-start-time='24833' data-end-time='36500'>Astronomers hope to use the data to better understand how stars are born and die, and how the Milky Way has changed over billions of years.</span> <span data-start-time='36500' data-end-time='45375'>The data includes new information like the age, size, temperature and chemical properties of stars. </span> <span data-start-time='45375' data-end-time='56063'>This information can be used, for example, to find out which stars were born in another galaxy and then moved to the Milky Way.</span> <span data-start-time='56063' data-end-time='62000'>“This is an incredible gold mine for astronomy,” said Antonella Vallenari. </span> <span data-start-time='62000' data-end-time='67313'>She helped lead a group of 450 scientists and engineers. </span> <span data-start-time='67313' data-end-time='75729'>They spent years turning the measurements collected by the space observatory into information that can be used.</span> <span data-start-time='75729' data-end-time='81021'>Gaia was also able to find more than 100,000 starquakes. </span> <span data-start-time='81021' data-end-time='87292'>ESA compared starquakes to large tsunamis that go across stars. </span> <span data-start-time='87292' data-end-time='93667'>They appear to make the stars’ brightness change for a very short period of time. </span> <span data-start-time='93667' data-end-time='104792'>The events let scientists measure the stars’ density, interior rotation and inside temperature, said astrophysicist Conny Aerts.</span> <span data-start-time='104792' data-end-time='112146'>The scientists have only collected information on about one percent of the Milky Way’s stars.</span> <span data-start-time='112146' data-end-time='122292'>But the Gaia mission is already providing enough information for about 1,600 scientific publications a year.</span> <span data-start-time='122292' data-end-time='132667'>Project scientist Timo Prusti said the large number of stars observed makes it more likely that scientists will make discoveries.</span> <span data-start-time='132667' data-end-time='139583'>“You have to observe a lot of objects in order to get the needle in the haystack,” he said.</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/5557/A20.jpeg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=18704 data-hint-location='11229' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/which_of_the_following_is_a_definition_of_the_word_map.wav'>Which of the following is a definition of the word map?</div><div class='choices' data-correct-choice='a representation of an area'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/a_representation_of_an_area.wav'><span>a representation of an area</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/a_quick_or_light_sleep.wav'><span>a quick or light sleep</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/a_device_to_control_the_flow_of_a_liquid.wav'><span>a device to control the flow of a liquid</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/the_often_sticky_fluid_of_a_tree.wav'><span>the often sticky fluid of a tree</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=18705 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/which_galaxy_did_the_mission_focus_on.wav'>Which galaxy did the mission focus on?</div><div class='choices' data-correct-choice='Milky Way'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/milky_way.wav'><span>Milky Way</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/andromeda.wav'><span>Andromeda</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/messier.wav'><span>Messier</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/whirlpool.wav'><span>Whirlpool</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=18706 data-hint-location='104792' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/the__blank__have_only_collected_information_on_about_one_percent_of_the_milky_ways_stars.wav'>The <span class='blank'>scientists</span> have only collected information on about one percent of the Milky Ways stars.</div><div class='choices' data-correct-choice='scientists'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/scientists.wav'><span>scientists</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/singers.wav'><span>singers</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/stylists.wav'><span>stylists</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5557/sprites.wav'><span>sprites</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>
Sound Name: https://news-app-production.s3.amazonaws.com/articles/5557/A20.wav
Preview
