Life on Other Planets

For centuries, scientists have looked for the possibility of life on other planets and have tried to prove its existence. Many stories have been written about life on other planets. Whether it’s a desire to connect with others creatures or a curiosity to know if we are alone in the universe, the question of life on other planets fascinates people of all ages.

Mars has been the biggest focus of the ongoing search for life on other planets for years. There are several reasons why scientists consider Mars the best place to look for extraterrestrial life, ......................................................................... (1). One reason why many people, including scientists, look to Mars as a possible source of extraterrestrial life is because they believe there is water on the planet. Since the telescope was first invented, astronomers have been able to see channels in the ground that look like canals or canyons. Finding water on a planet is vitally important to proving that life exists there.

Another reason astronomers consider Mars as a likely location for life is because there is a good possibility that Mars is in the habitable zone. ......................................................................... (2). This is means the sun is far enough so that its heat cannot damage living creatures and life, but also close enough that the planet isn’t too cold. Unsurprisingly, Earth is in the middle of the habitable zone. Although astronomers do not exactly know how big this zone is, they think that Mars could be in it.

Most astronomers are looking for life that is similar to life on Earth and they do not limit themselves to our Solar System. They suggest that we look at different solar systems. Scientists are planning to use interferometry, ......................................................................... (3), which is used in astronomy as well as other fields. With this technique they hope to find planets in the habitable zones of other solar systems. Astronomers believe that there are hundreds of solar systems and thousands of planets. This number increases the possibility of life outside of Earth.