What are the difference between the author's opinion on the possibility of life on other planets and the opinions of NASA scientists? Write a paragraph explaining your answer. Use details from the article to support your answer.

A senior research scientist from NASA is using satellite images to see if there are entire bodies of water on other planets, which may help discern whether life also exists in places other than Earth.

Robert T. Pappalardo, a senior research science in NASA’s Planetary Science Section, Science Division, gave his lecture entitled “Ices and Oceans in the Outer Solar System” in the Nebraska Union Auditorium on Tuesday.

By using the images and data gathered from the Voyager, Galileo and Cassini-Huygens satellites, Pappalardo and other scientists have been able to hypothesize whether certain planets have water or other bodies of liquid on them.

One of the ways scientists have been able to assess whether a planet has water is by looking at its magnetic field. Certain moons, such as Europa and Ganymede, create counter fields to combat Jupiter’s massive gravitational field. However, to create this field, a conductor is required. Pappalardo said this conductor may be salt water.

Another way of finding water is by examining a moon’s geysers. Moons such as Enceladus have geysers that spray out various elements and chemicals. During one of the passes of the Cassini-Huygens satellite, these chemicals were examined after being expelled from the geysers.        

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