Crash Course Astronomy
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Crash Course Astronomy
Join host Phil Plait in a Crash Course about the cosmos.
2015年12月16日
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On September 26, 2022, NASA and the Johns Hopkins University's Applied Physics Laboratory piloted a partly autonomous, van-sized spacecraft into the asteroid Dimorphos at 14,000 miles per hour, deflecting it and changing its orbit around its more elephantine asteroid parent, Didymos. #astronomy #asteriod #crash #van #space #fyp #content #spaceontop #didymos #nasa #dimorphos #johnhopkinsuniversity #fast #cool
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On September 26, 2022, NASA and the Johns Hopkins University's Applied
astronomy_forever6
The Moon is our cosmic crash detector 💥 Every day, tiny asteroids and meteoroids hit Earth’s neighbourhood - most too small to notice. But on the airless Moon, their impacts light up as brilliant flashes. That’s where our new NELIOTA-III project comes in. Using a powerful telescope in Greece, scientists are capturing these flashes in real time - turning the Moon into a natural laboratory for planetary defence. From the first validated flash of this campaign to a special eclipse observation atte
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The Moon is our cosmic crash detector 💥 Every day, tiny asteroids and
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Crash Course Astronomy: Asteroids
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Recreate some of this year's highlights in NASA planetary exploration using our "Eyes on the Solar System" experience. First up, try the #JunoMission's close flyby of Jupiter's volcanic moon Io in February: https://go.nasa.gov/3DxJgNc What we learned: https://go.nasa.gov/4iUF2PP - NASA’s MAVEN (Mars Atmosphere and Volatile EvolutioN) spacecraft celebrated 10 years of exploring the Red Planet’s atmosphere: https://go.nasa.gov/4gUcfZQ See its discoveries: https://go.nasa.gov/3XtVxbu - In October,
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How Sunlight Pushes Asteroids Rotating asteroids have a tough time sticking to their orbits. Their surfaces heat up during the day and cool down at night, giving off radiation that can act as a sort of mini-thruster. This force, called the Yarkovsky effect, can cause rotating asteroids to drift widely over time, making it hard for scientists to predict their long-term risk to Earth. Learn more here: http://1.usa.gov/1SgyCeT | NASA’s Goddard Space Flight Center
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Asteroids, rocky leftovers from the solar system's fiery birth, zip around the sun in various orbits. They range in size from space-boulders to dwarf planets, some even sporting moon companions. While some asteroids stay put in the main belt between Mars and Jupiter, others venture closer to Earth, occasionally gracing our night skies as shooting stars. But where do these celestial wanderers originate from, and why do their paths sometimes cross ours? | The Brain Maze
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Asteroids are some of the most fascinating and mysterious objects in our solar system, offering us clues about the origins of our universe and, possibly, the beginnings of life itself. These rocky remnants from the solar system's formation are scattered across space, primarily in the asteroid belt between Mars and Jupiter, and vary wildly in size, shape, and composition. Some asteroids are only a few meters across, while others span hundreds of kilometers—miniature worlds made up of rock, metal,
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