Rate the following argument fragment on its writing, argument, and language skills:
Evidence: Conducting research requires numerous forms of evidence, samples, test, etc. In paragraph 5, the author makes suggestions of creating a spacecraft to sustain temperatures of at least 170 degrees Fahrenheit and levitating thirty-plus miles over the surface to observe the planet. Although this may be the most safest and efficient approach, he even stated that it would require getting "up close and personal" to collect samples. The whole idea is to reach Venus and collect data to compare to Earth and Venus' previous history.

Score: 2