![SOLVED: (II) Our nearest star (other than the Sun) is 4.2 light-years away. That is, it takes 4.2 years for the light it emits to reach Earth. How far away is it SOLVED: (II) Our nearest star (other than the Sun) is 4.2 light-years away. That is, it takes 4.2 years for the light it emits to reach Earth. How far away is it](https://cdn.numerade.com/previews/f9b3e9d3-a616-41f2-b4ec-0836ed6e32d1_large.jpg)
SOLVED: (II) Our nearest star (other than the Sun) is 4.2 light-years away. That is, it takes 4.2 years for the light it emits to reach Earth. How far away is it
![SOLVED:(a) A light-year, the distance light travels in 1 year, is a unit used by astronomers to measure the great distances between stars. Calculate the distance, in miles, represented by 1 light-year. SOLVED:(a) A light-year, the distance light travels in 1 year, is a unit used by astronomers to measure the great distances between stars. Calculate the distance, in miles, represented by 1 light-year.](https://cdn.numerade.com/previews/65ca9e9c-fb95-47cd-93d7-aef84b7cb04e.gif)
SOLVED:(a) A light-year, the distance light travels in 1 year, is a unit used by astronomers to measure the great distances between stars. Calculate the distance, in miles, represented by 1 light-year.
![SOLVED: 4. Does a black hole have to be indescribably dense? Would it be possible for us to approach and enter a black hole without becoming aware of it until it was SOLVED: 4. Does a black hole have to be indescribably dense? Would it be possible for us to approach and enter a black hole without becoming aware of it until it was](https://cdn.numerade.com/ask_images/d649af6c48464394a90a7452390b780e.jpg)
SOLVED: 4. Does a black hole have to be indescribably dense? Would it be possible for us to approach and enter a black hole without becoming aware of it until it was
![Distance in Space. Light Years 0 Light years is a measurement in distance, not a measurement of time. 0 Light year represents the distance that light. - ppt download Distance in Space. Light Years 0 Light years is a measurement in distance, not a measurement of time. 0 Light year represents the distance that light. - ppt download](https://images.slideplayer.com/18/6076844/slides/slide_3.jpg)