Question

3 Are we alone in the universe? ... ​

Answer 1

Answer:

probably not

Explanation:

there are many planets to be discovered

Answer 2

When would we be able to say, “yes, extraterrestrial life has been found?” NASA scientists are encouraging the scientific community to establish a new framework that provides context for findings related to the search for life. Writing in the journal Nature, they propose creating a scale for evaluating and combining different lines of evidence that would ultimately lead to answering the ultimate question: Are we alone in the universe? A field that probes the origins of life on Earth and possibilities of life elsewhere.