Search results
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!
- 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
For example, you can easily find the center of mass of a...
- What is a Nebula
This landscape of "mountains" and "valleys" speckled with...
- 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
We live on a planet called Earth that is part of our solar...
- Contact NASA Space Place
The light-year is most often used when expressing distances to stars and other distances on a galactic scale, especially in non-specialist contexts and popular science publications. The unit most commonly used in professional astronomy is the parsec (symbol: pc, about 3.26 light-years).
22 gru 2021 · The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km). At first glance, this may seem like an extreme distance, but the enormous scale of the universe dwarfs this length.
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.
A light-year is a measure of distance, just like inches, feet, and miles. But it’s not just any measure - it’s used to express distances so massive that they are almost impossible to imagine. It’s the distance that light travels in a vacuum in one full year.
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.
28 sie 2023 · A light-year is the distance that light travels in a year, or: 186,000 miles/second * 60 seconds/minute * 60 minutes/hour * 24 hours/day * 365 days/year = 5,865,696,000,000 miles/year. One light-year is 5,865,696,000,000 miles (9,460,800,000,000 kilometers). Light-years are a long way!