Want to look into the past? It's easy; Just go outside at night and look up. The light from the nearest star (outside of our Sun) took 4 years to get here, and the rest of the visible stars are pretty close, less than 10 light-years away.

Get it? When you see a star, you are really looking into the past.

If you want to see REALLY WAY BACK without a telescope, find the Andromeda Galaxy on a clear night. When you find it, you are seeing something as it was over 2.5 MILLION years ago.

The future? forget it.