I had a physics lesson at school lately and i stated that by looking at the stars we are looking back in time because the light takes a long time to reach our planet therefor we are looking back when the star's light first is sent off/ received by us. The teacher then said that this was not true as it is virtually impossible to look back in time. I did not believe him. Please tell me the truth. Thankyou, Entropy+time=fun P.S. I am new here and am not sure whether this is the right place to post this query and also i would like to make some friends.