Title: Does Life Exist Elsewhere in the Cosmos?
Headings: Does Life Exist Elsewhere in the Cosmos?
Does Life Exist Elsewhere in the Cosmos?
How the Search for Life Is Done
How Life is Made
How Rare is Life in our Galaxy?
We Just Don't Know — Yet!

Content: can this planet support life? On some, conditions for life could be quite good. Some worlds, however, orbit too close to their star, or too far away. The best chances for finding life lie in the so-called "habitable zones". These are regions around the parent star where liquid water, which is necessary for life, could exist. Of course, there are many other scientific questions to be answered in the search for life. How Life is Made
Before scientists can understand if life exists on a planet, it's important to know how life arises. One major sticking point in discussions of life elsewhere is the question of how it gets started. Scientists can "manufacture" cells in a laboratory, so how hard could it really be for life to spring up under the right conditions? The problem is that they are not actually building them from the raw materials.