Light-year is the distance that light travels in a year. Therefore, it will take light 6 years to travel 6 light-years. So far, it has not been possible to send messages faster than the speed of light, and it will probably never be possible (read about the Theory of Relativity to get an idea about the reasons for this).
It would depend on what speed you travel.
One light year is around 10 trillion km or 6 trillion miles. Nine lightyears would be 90 trillion km or 54 trillion miles. You would generally just say nine lightyears though.
8.3 light minutes equates to about 92,768,633.7 miles.
It varies, depending on the positions of Earth and Mars. It can be anywhere between 3 and 22 minutes. When this answer was written (6/27/2009), Mars was approximately 177 million miles from Earth which works out to about 15.84 light-minutes.
For light to travel from the sun to earth.
At light speed it would take 20 to 40 minutes going from earth, and 50 minutes going from the sun.
Well the Moon is 1 light second away from earth ( meaning if you were moving at the speed of light you would reach and pass the moon in 1 second ) and the Sun is about 8 light minutes away from us. Jupiter is maybe 4 light minutes?
Mercury Is 0.000131 lightyears away from earth
2 lightyears
It depends on the distance the star is from Earth. If it is 250 Million Lightyears away, then you'll be able to see it's light for 250 Million years. If the sun went out, you'd see light for 8 minutes.
Xriun 1000billion lightyears away
Not very much, 5 lightyears (even 2 lightyears) is quite a large distance away. There would be some minor differences in temperature and light, but nothing to get on your high horses about. The two biggest differences, however, would be the fact that constellations would be different, and it might have a cultural impact as well as modify our understanding of astronomy. A possible but rare scenario is that its gravity may cause more meteors than we have now (or other objects) to go towards the Earth. One last thought: I'm not entirely sure about this, but I'm willing to bet it could have affected the development of our solar system.
One light year is around 10 trillion km or 6 trillion miles. Nine lightyears would be 90 trillion km or 54 trillion miles. You would generally just say nine lightyears though.
The earth has been around for a loooong time , and i were to right down the number of minutes the earth have been around, i would need A LOT OF paper.
It would all depend on the speed travelling, as time = distance/speed.
8 minutes
If the moon were closer to earth there would be a stronger gravity pull on earth. It could be so strong that it would take us more then 10 minutes to take 6 steps!
It isn't clear how you would measure a text message in minutes. Normally, text messages have a length in characters - each character is probably 1 or 2 bytes. A byte, of course, is one millionth of a MB.