Perhaps two of the most compelling questions in nature are (a) and whether there

Question

Perhaps two of the most compelling questions in nature are (a) and whether there is (b) In 2010, a simple was fabricated. (c) Understanding the (d) ay be helped forward by (e) elsewhere in our solar system, such as inside (g) (h) and, possibly, (i) Astronomers began looking for life outside of Earth on in the 1970s. Conceivably, advanced civilizations from elsewhere have sent and many people they may have seen their spacecraft (k) commonly called (m) There is also a question whether life on Earth was (n) intentionally or unintentionally by (o) If Earth was visited, the (p) with life by aliens is possible, but Occam's razor requires us to explore for the beginning of life here. (q) Some people find comfort in the belief that is the only home for life. (r) Others believe that due to the vastness of the universe and the size and diversity of the objects in the cosmos, that there may be (s) suitable for (t) An effort to understand the formation, evolution, and future of life here and throughout the cosmos that combines all of the natural sciences is called (u) The discovery of strong evidence that in several worlds in the solar system has added fuel to the search (v) for life outside of the Earth. A meteor from Mars, labeled (w) was opened to reveal (x) that could have been formed by life on Mars. This possibility (y) of many people, including those who fund NASA. (z) now work in this field

Explanation / Answer

r . earth

k. strong message from deep space.

l. unidentified flying object(UFO)

s. other planets

t. sustaining life

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