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22 gru 2021 · A light-year is a measure of astronomical distance: Light travels through a vacuum at precisely 983,571,056 feet (299,792,458 meters) per second, making a light-year approximately 6 trillion...
12 lip 2022 · Southern Ring Nebula: This planetary nebula, an expanding cloud of gas that surrounds a dying star, is approximately 2,000 light years away. Here, Webb’s powerful infrared eyes bring a second dying star into full view for the first time.
A light-year is a measure of the incredible distance that light travels in a year. It’s a concept that helps us understand the vastness of space and the universe. Remember, the next time you look up at the stars, you’re seeing light that’s traveled trillions of miles to reach your eyes.
5 lis 2023 · Astronomers said they had identified the earliest, most distant galaxy yet found: a banana-shaped blob of color measuring 1,600 light-years across.
12 lip 2022 · To observe a star 10 light-years away is to see it as it existed 10 years ago, when the light left its surface. The farther away a star or galaxy lies, the older it is, making every telescope a...
12 lip 2022 · The Carina Nebula is a turbulent region of star birth, and death, approximately 7,600 light-years away in the southern constellation Carina. Webb’s infrared capabilities allow it to peer through...
8 mar 2023 · More than 60 years after human spaceflight began in 1961, genders other than male make up only about 10% of astronauts and space tourists. But diversity is starting to accelerate, with recent...
