The reading and lecture both about colonization notion of asteroids.

The reading and lecture both about colonization notion of asteroids. The author of the reading feels that in our galaxy thousand of asteroids and easy to colonization there for several reasons. The lecturer challenged the claim made by the author. He is on the opinion that the presenting claims are not practical and has a serious downside. To begin with, the author argues that it has less gravity and easy to land of the ground. He also claims that less gravity allows the spacecraft to transfer more instrument and requires less fuel. The specific argument is challenged by the lecturer, He mentions that low gravity has a negative impact on the body. He also states that astronomer experienced muscle mask and bone stretch after spending several days on the spacecraft. Moreover, muscle and bones lose their density. Second, the writer suggests that asteroids are full of valuable metals like gold, platinum which is a profitable source of earning. He also adds that from this business the project can easily sponsor. However, the lecturer rebuts this by mentioning that minerals are the profitable business but it is not the whole picture. He claims that the transportation rate is high and when the precious material will available to the market the consumer will be less interested and the market price will low. Third, the author posits that asteroids come constantly near to the earth and require less time to transfer. He also mentions that it will be affordable and also cost-effective. In contrast, the lecturer position is that it is true that they orbit near to the earth but also pass the earth far distance. He also noted that when it departed the earth for a long time it will be challenging for the spacecraft to reach on earth.