If the history of the universe from the Big Bang to the present were laid out on a football field, Earth and our solar system would not appear until our own 33-yard line. Life appeared just inside ...
two eras tap out the final death throes of the universe: the so-called degenerate and dark eras. Ready to give it a whirl? Click on the image at left.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback