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  1. spaceplace.nasa.gov › light-year › enWhat Is a Light-Year? - NASA Space Place

    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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  2. en.wikipedia.org › wiki › Light-yearLight-year - Wikipedia

    A light-year, alternatively spelled light year ( ly ), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km ( Scientific notation: 9.4607304725808 × 10 12 km), which is approximately 5.88 trillion mi.

  3. www.explainingspace.com › how-long-would-it-take-to-travel-a-light-yearHow Long Would It Take To Travel A Light Year - Explaining Space

    23 lis 2022 · Imagine, even at this fast pace, it would still take 2,958 years to cover a distance of one light year, a testament to the vastness of space—approximately 5.88 trillion miles (9.46 trillion kilometers).

  4. astrobackyard.com › light-yearHow Far is a Light Year? | The Fastest Thing in the Universe

    A light-year is the distance light can travel in one year. Light is the fastest thing in our Universe traveling through interstellar space at 186,000 miles/second (300,000 km/sec). In one year, light can travel 5.88 trillion miles (9.46 trillion km).

  5. www.explainingspace.com › how-many-years-is-a-light-yearHow Many Years Is A Light Year? - Explaining Space

    31 paź 2022 · A light year is about 6 trillion miles (9.7 trillion kilometers). In contrast, the distance from Earth to the sun is roughly 93 million miles (150 million kilometers). So, traveling from Earth to the sun covers much less distance than a light year.

  6. www.space.com › light-yearWhat is a light-year? | Space

    22 gru 2021 · A light-year is the distance a beam of light travels in a single Earth year, which equates to approximately 6 trillion miles (9.7 trillion kilometers).

  7. sciencenotes.org › what-is-a-light-year-definition-and-examplesWhat Is a Light Year? Definition and Examples - Science Notes and...

    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.