Where did our oceans come from? Why is over 70% the earth’s surface covered by water? The answer may be in the dirty celestial snow balls we call comets. Scientists believe that the earth was originally dry and hot. Comets … Continue reading
Where did our oceans come from? Why is over 70% the earth’s surface covered by water? The answer may be in the dirty celestial snow balls we call comets. Scientists believe that the earth was originally dry and hot. Comets … Continue reading