Search results
9 lip 2024 · A light-year is the distance light travels in one Earth year. Learn about how we use light-years to measure the distance of objects in space.
- Contact NASA Space Place
For most space objects, we use light-years to describe their...
- Less
En el año 2016, el Telescopio Espacial Hubble de la NASA...
- What is a Barycenter
Some parts of an object may have more mass than other parts....
- What is a Nebula
Nebulae exist in the space between the stars—also known as...
- Mystery
Tsunami is a Japanese word that means "harbor wave." It is a...
- Science and Tech
Space Communications and Navigation Kids Zone This link...
- How Far Away Is The Moon
How far apart? To see for yourself how far apart Earth and...
- What is a Galaxy
It’s a small part of the Milky Way Galaxy. A galaxy is a...
- Contact NASA Space Place
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.
Light-year is the distance light travels in one year. Light zips through interstellar space at 186,000 miles (300,000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year. We use light-time to measure the vast distances of space.
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...
20 lut 2013 · A light-year is how astronomers measure distance in space. It’s defined by how far a beam of light travels in one year – a distance of six trillion miles.
28 sie 2023 · A light-year is a way of measuring astronomical distances in space. That doesn't make much sense because "light-year" contains the word "year," which is normally a unit of time. Even so, light-years measure distance.
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.
