Time traveling is one of the most essential concepts in Science. One cannot travel back in the time given the present innovations and discoveries. According to this line, You can look back in time every time you look at the stars, do you agree with this? Explain your answer. It is common knowledge that the universe is expanding. What do you think will be the future of our universe? Do you think there will come a time wherein we will have a more detailed understanding of the known universe?