Humans have always wondered about
life beyond the stars. The curiosity doesn't only stem from popular
culture and the advent of film and television, but even before then.
Books, oral stories and painting depicted "evidence" of aliens. People have always
thought about extraterrestrial life, what aliens would look like, and
if the creatures would come in peace, if they exist. But what are the
nation's scientists and researchers saying about the potential existence
of aliens?
NASA's administrator believes we are not alone. In
2015, Charles Bolden, who has been the administrator of NASA since
2009, said, "I do believe that we will someday find other forms of life
or a form of life, if not in our solar system then in some of the other
solar systems — the billions of solar systems in the universe,"
according to the Telegraph.
Jason Wright
If life arose naturally on Earth, it
must be possible for it to arise on other, similar planets, said Wright,
a professor of astronomy at Penn State.
"The primary
argument is that life exists here, and has existed here for billions of
years," Wright said in an email. "That is, life on Earth presumably
arose via natural processes, those natural processes are universal and
the requirements for life (rocky planets, water, carbon, etc.) appear to
be widespread in the galaxy."
"Since it happened here on
Earth relatively quickly after the Earth formed and cooled, it must be
possible for it to happen elsewhere. Even if the probability of it
happening is very low, there are billions of planets in our galaxy alone
that should have conditions similar to early Earth, so it stands to
reason that some fraction of them also have life."
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