Why Can_t We See Evidence of Alien Life_ Full Documentary

It appears that we have a powerful modern civilization, since many advances have been made in the fields of physics, chemistry, medicine, engineering, etc. In this, our great civilization, we have built powerful ships and directed them towards the Moon. Ships have scanned space, and have landed on the lunar surface, etc. Ships have also been sent to Venus, although they were not manned. Excursions to Mars are planned, and it has been said that around the year 1985, or maybe later, the United States is planning to send a manned nuclear rocket to Mars. We will wait for concrete results on this particular subject-matter. All of this is intriguing and extraordinary in its depth.