The lecturer asserts that the problems that exist in the manned mission to Mars can be overcome.
First of all, the lecturer talks that the dust attached to the space ship panel and to the astronauts’ suits can be blown away by using sound technology. When high pitched sound occurs, the minute dusts can be detached from the surface of the panels and suits, no more interrupting space expedients. This counters the reading material’s argument that the dust attached to the panel of spaceships and suits makes the space trip difficult.
Secondly, the speaker explains that the depression of astronauts, which is caused by long isolation from friends and family, can be prevented in advance, because astronauts’ training programs contain mental exercises that make astronauts to be accustomed to extended isolation from the earth. Also the lecturer insists that even when an astronaut is suffered from the depression or a mental illness during the trip to Mars, diverse types of counseling such as video therapy are available to them. This assertion again rebuts the reading passage that suggests that the astronauts will be suffered from mental problems.
Finally, the lecturer argues that the financial burden is not risky. Since 1998, 15 countries have been collaborating to operate the manned mission to Mars. Also, since while trying a space trip to Mars, a lot of technological developments are naturally resulted, the operation of the manned mission to Mars deserves to continue. This disagrees that reading’s conclusion that the financial burden is hard to overcome.