| 2. | Light Year | ||
|
1 Light Year = 9324744613632km
One light year is defined by travelling for 365 days at the constant speed of light, which is 299 792 458 m/s where: m = distance in metres s = time in seconds Proxima Centauri is 4.3 light-years from the Sun.
|
|||
| 1. | Light Year | ||
|
1. The distance light travels in one year, or approximately 5.88 trillion miles.
2. A figure of speech meaning very advanced. 1. The nearest star is about 4 light years away, and our galaxy is about 100,000 light years across.
2. If alien's exist, chances are they're light years ahead of us in technology. |
|||
