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9 lip 2024 · For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!
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The next closest star to us is about 4.3 light-years away....
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12 lip 2022 · NASA revealed the first five full-color images and spectrographic data from the world’s most powerful space telescope, the James Webb Space Telescope, a partnership with ESA (European Space Agency), and CSA (Canadian Space Agency).
12 lip 2022 · NASA released high-resolution color images from its James Webb Space Telescope. Scientists say the pictures will change the way people see space. Webb began taking its first images a few...
12 lip 2022 · By Brian Handwerk. Science Correspondent. The deepest, sharpest infrared image ever captured of the distant universe was revealed last night—a stunning display of the galaxy cluster SMACS 0723...
A true-blue world, 63 light-years away. Earth appears blue from space because it has oceans. Planet HD 189733b appears blue because of molten glass "raindrops" blowing sideways across its...
12 lip 2022 · The light in the Webb “deep field” image released on Monday is a snapshot of a part of the universe when it was less than a billion years old. What could learning more about the period closer...
28 maj 2020 · A light year (ly) is the distance light travels in one Earth year. It is 9.4607×10 15 meters or 5.8786×10 12 miles, about 63 astronomical units or about 0.3 parsecs. It is an intermediate unit of astronomical distance.
