쉐도잉 연습: Space Exploration – Beyond Our Planet - 영상으로 영어 말하기 배우기
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Music Take
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notes as you watch this video and test your knowledge by taking the space exploration quiz at the end.
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Human beings have always been fascinated by the cosmos, seeking to unravel the mysteries of the stars,
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planets and galaxies that lie beyond our earthly realm.
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We have developed sophisticated technology and methods to pierce through the sky's veil, venturing into the unknown to satisfy our insatiable curiosity.
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Our quest to understand space and our place within it has led to incredible advancements in astronomy and space exploration.
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With eyes turned skyward and technology in hand, We strive to answer the age-old questions that have mystified humanity for centuries.
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Now, let's take a look at some of the primary ways people explore space.
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Telescopes.
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One of the most fundamental tools for peering into space is the telescope.
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Optical telescopes collect visible light from the electromagnetic spectrum to help astronomers view distant stars, galaxies and other celestial bodies.
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These devices have evolved over the centuries, from Galileo's simple spyglass to the intricate and massive instruments we see today.
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Radio telescopes, on the other hand, capture radio waves emitted by celestial objects.
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Arrays of radio antennas, like the Very Large Array in New Mexico, allow scientists to study phenomena such as pulsars,
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quasars, and cosmic microwave background radiation, unveiling the universe's hidden secrets.
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Space telescopes.
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Beyond the Earth's atmosphere, space telescopes orbit our planet to gather data free from atmospheric distortion.
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The Hubble Space Telescope is one of the most notable, providing unprecedented images and information about the universe's distant reaches.
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The James Webb Space Telescope, launched in 2021, is expected to revolutionize our understanding of the cosmos,
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with its ability to observe high redshift objects that are too old and too distant for Hubble to observe.
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These orbital observatories capture light across various wavelengths, offering insights into the formation of galaxies,
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the behaviour of black holes and the life cycles of stars.
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The era of artificial satellites began with the launch of Sputnik by the Soviet Union in 1957.
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This event marked the beginning of a new chapter in space exploration, leading to the development of a plethora of satellites that serve a myriad of purposes.
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Today, satellites play a critical role in our daily lives and have applications in communication,
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navigation, weather forecasting, environmental monitoring and military operations, among others.
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Communication satellites facilitate global connectivity, connectivity, enabling telephone, internet and television broadcasts across continents.
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Navigation satellites, like those in the Global Positioning System , provide precise location data, essential for various industries,
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including transportation, agriculture and defence.
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Weather satellites orbit Earth, monitoring atmospheric conditions and providing data that helps in predicting and understanding weather patterns.
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Moreover, satellites are instrumental in space science, earth observation and astrophysics.
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They allow scientists to monitor climate change, natural disasters and land use patterns.
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In space science, satellites like the Chandra X-ray Observatory and Kepler have enriched our understanding of the cosmos,
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unveiling mysteries about stars, galaxies and exoplanets.
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Space probes.
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Space probes are unmanned spacecraft that travel deep into our solar system and and beyond, gathering data on various celestial bodies.
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These instruments have provided insights into the composition, atmosphere and surfaces of planets, moons, comets and asteroids.
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Pioneering probes like Voyager, Pioneer and New Horizons have expanded our understanding of the cosmos,
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sending back detailed information from their extensive journeys.
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Rovers.
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Rovers are specialised vehicles designed to explore the surfaces of other planets and moons.
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These robotic explorers like Mars rovers, Curiosity and Perseverance, conduct detailed examinations of the terrain, atmosphere and geological features.
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They collect samples, take images and perform experiments to determine the potential for life and understand the celestial body's formation and evolution.
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Space missions.
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Human and robotic space missions are meticulously planned operations to explore the great expanse beyond our Earth.
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One of the most iconic moments in space exploration history was the Apollo 11 mission,
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which successfully landed the first man on the Moon in 1969.
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Neil Armstrong's historic step onto the lunar surface marked a significant milestone, showcasing human ingenuity human ingenuity and our relentless pursuit of exploration.
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Human missions, like those conducted by NASA, SpaceX and other international space agencies, aim to transport astronauts to destinations like the Moon,
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Mars and space stations for research and exploration.
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Robotic missions extend our reach to places currently unreachable by humans, unveiling the cosmos' enigmatic beauty and complexity.
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Space stations.
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Space stations like the International Space Station, ISS, serve as platforms for extended human presence in space.
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Scientists and astronauts aboard these orbital laboratories conduct experiments in microgravity, study space's effects on the human body,
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and test technologies for future missions.
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Space stations are hubs for international cooperation, pushing the boundaries of human knowledge and capabilities in space exploration.
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In the evolving landscape of space exploration, these methods and technologies continue to expand our understanding of the universe's intricate tapestry.
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Each discovery, innovation and mission propels us closer to unlocking the cosmic secrets that have eluded humanity for millennia.
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Bridging the gap between our blue planet and the star-studded heavens beyond.
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Okay, time for a quick quiz.
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I'm
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going to
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go to the next video.
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I'm
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going to
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go ahead and put it in the middle of the room so
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I'm going to go ahead and put the bag on the top.
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I'm going
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to go ahead and put it in the middle of the room.
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Thanks for learning, and I'll see you next time.
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Thank you.
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