REACTION PAPER
IN
NATURAL SCIENCE 2
(EARTH SCIENCE)
“Modern Astronomy aims to find habitable planet other than Earth. Do you think these attempts will bear positive results? Offer some probable place where we can migrate to.”

INTRODUCTION:
"We know of just one planet where life exists -- Earth. When we search for life outside our solar system we focus on finding planets with characteristics that mimic that of Earth," said Elisa Quintana, research scientist at the SETI Institute at NASA's Ames Research Center in Moffett Field, Calif.
Using NASA's Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting in the "habitable zone" of another star. The planet, named "Kepler-186f" orbits an M dwarf, or red dwarf, a class of stars that makes up 70 percent of the stars in the Milky Way galaxy. The discovery of Kepler-186f confirms that planets the size of Earth exist in the habitable zone of stars other than our sun. The "habitable zone" is defined as the range of distances from a star where liquid water might pool on the surface of an orbiting planet. While planets have previously been found in the habitable zone, the previous finds are all at least 40 percent larger size than Earth and understanding their makeup is challenging. Kepler-186f is more reminiscent of Earth. Although the size of Kepler-186f is known, its mass and composition are not. Previous research, however, suggests that a planet the size of Kepler-186f is likely to be rocky. REACTION:
Nowadays, Astronomers aims to find Earth-like planet. As a student, I found it interesting that Astronomers find way to discover a habitable planet other than Earth, but for me this study may bear positive as well negative results to us. These are the following reasons why I think it will not bear positive results: First, It will affect how people will care for our earth. They will assume that if there were Earth-like planet there is no significant for them to give concern of our planet. It will also affect how people will adjust their living. Secondly, we did not know the composition of that planet if it’s capable for sustaining a life. We are not sure if their atmospheres are suitable for us to people live. It may affect the health status of a certain individual. Furthermore, Astronomers cannot tell what the temperature of that certain planet because the temperature of a planet depends on its atmosphere. Lastly, what if there were invaders in that planet and try to invade us. There were be possibilities they will be the one to occupy our planet. It will result also that we will lose our planet.
On the other hand, that habitable planet may also bear positive results. That habitable planet will be our second home. Because at the present, our planet Earth are undergo rapid growth of population. Our resources now are limited to sustain every individuals need. Maybe after 30 years, we may experience lacking of space, which result that we must migrate to other planet. It will serves us another place whom we can feel new atmosphere. Earth now is experiencing climate change, which results that our temperature varies over time. We are now suffering from air pollution due to the over population and bad habits. Our ozone layer that protects the earth surface is now at its critical condition.
In general, a habitable planet bears negative and positive outcome to us people. It has an advantage and disadvantage effects.
REFLECTION:
When I am task to give my reaction about the said habitable planet, it gives the feeling of curiosity. It gives me interest to find out what will be the benefits for us if we will migrate to that habitable planet. Also, I learned that we must take good care of our planet Earth. Even though there’s lot of rumours about finding a habitable planet. We should not depend to that planet for us to live. We may not live here forever, atleast we did our part to protect our Mother Earth for the sake of the next generation. In addition, I appreciated the efforts and perseverance that our Astronomers make to find habitable planet. It’s amazing how they discover a habitable planet, not just for them to become popular but also to offer us a comfortable place where we can live in.