In this video clip, Mars is discussed about how it was changing through time. Back then, they thought Mars might be "dead" but now, we're discovering water and slight forms of life. This scientific breakthrough shows the limitations humans have. After many milleniums, we still have not gone much past our solar system. We've only disovered other galaxies and and other planets but we still don't know much about it. We still don't know much about our solar system either. And Mars is really close compared to other planets many light years away. We should just focus on out solar system first and then venture outward.