What The Night Sky in the
Adirondacks tells us Go outside tonight. Bundle up, find a
comfortable place to
lie down and look up. You’re looking back in time. On a very clear
night, with
the naked eye, you will see stars whose light left their source between
three
thousand and sixteen thousand years ago, the former a thousand years
before
Jesus Christ lived, and the latter about the time our hunter gatherer
ancestors
were transitioning to farmers, and were slowly breeding, through
unnatural
selection, dogs out of gray wolves. Galaxies, like our own Milky Way
galaxy, are collections of stars
drawn together through gravitational attraction, and the nearest we can
see
with the naked eye, the Andromeda Galaxy is about two and a half
million light
years away, so the light we see from Andromeda left that galaxy, about
four and
a half million years after genus homo was separating from our nearest
genetic
relative, chimpanzees. Anatomically modern man, homo sapiens, cromagnon
man,
whatever you wish to call us, goes back only about 200,000 years, and
we didn’t
successfully leave Africa until about seventy thousand years ago, on a
planet
where life first developed about four billion years ago. The Hubble telescope showed us a galaxy
about 13.4 billion
light years away, and the furthest star, about nine billion light years
away,
all this in a universe judged to be about 13.8 billion years since the
Big
Bang. Hubble also revealed a quasar whose light left Markarian 231
twice as
long ago as dinosaurs first began appearing on earth, at the dawn of
the
Triassic. The night sky kind of puts things in perspective. Three of the life enhancing advantages
of living up here in
the Adirondacks are the lack of traffic so many of our fellow Americans
deal
with every day, the wide range of seasonal outdoor activities, which
despite
many of our poor personal habits, encourage us to follow a healthier
lifestyle,
and most importantly, the staggeringly beautiful environment which drew
many of
us up here in the first place. A key aspect of that beauty is
experienced by simply looking
around and seeing the mountains, forests and fields adorned in the
changing
colors of our seasons, and displayed in our increasingly crazy and
chaotic
weather, from the brightest sunny days to rainy misty windy days, to
lazy days
when cumulous clouds drift towards the horizon, and those magical days
when
giant snowflakes fall so thickly, slowly, and gently, muffling all
sound. We
are truly blessed to be alive today, and living in the Adirondack
Mountains,
far from the crazy bustle of modern COVID and Climate Changed
Civilization. Thanks to the absence of serious light
pollution, the
Adirondack night sky is a continual source of beauty and information,
nature’s
cathedral, wherein we all become Spinozan pantheists and the stars and
planets
are the ceiling through which we can not only look back in time, but
experience
the slow and steady movements of human placed satellites, the twinkling
of
distant stars, the flat, disc-like appearance of our visible planets,
and the
occasional “shooting star”, which tend to be tiny fragments of
meteorites and
other space debris, burning up as they streak through the friction of
earth’s
atmoshere. The universe is so enormous we can
conceive of its vast
areas of emptiness, broken up by the violence of collapsing stars,
supernovas, comets
and meteors, black holes, quasars and pulsars, with everything rushing
apart
until that time when gravity reasserts itself against the outward
momentum of
the Big Bang, and everything begins collapsing again towards a center
which
leads to what? …..another Big Bang, a new universe, and how many of
those are
there, have been or will be? Our kids grew up looking through my
unsteady rickety telescope,
which revealed four of the 79 confirmed moons of Jupiter, as well as
the rings
of Saturn, which almost look artificial, as though Zeus was playing
frisbee,
and let one get away. In those days, we brought a circular cardboard
star chart
outside, which used the position of the North Star, to help us figure
out what
we were looking at. Today with our lives run by instant communications
and
smart phones, you may download apps like Skyview, which lets your
iPhone camera
identify a planet, star or galaxy just by pointing at it. Our moon, about 250,000 miles from
Earth, has no atmosphere,
which would act as a brake for incoming meteors smashing into its
cratered surface,
while the earth, living within the Goldilocks Zone of our sun, an
average of 93
million miles away from our star, not too close (like Venus and
Mercury) so
that any water would evaporate, or too far away (like Mars and the
outer giants)
where any water would freeze. The tilt of the earth’s axis and the
consequence
of the angle at which sunlight strikes earth’s surface, causes our
seasons,
such that in the Northern hemisphere, we’re actually closer to the sun
during
our winter, than we are during our summer. Our atmosphere is about 78% nitrogen,
21% oxygen, with a
narrow sliver of greenhouse gases like carbon dioxide and methane, as
well as argon, neon, helium, krypton and hydrogen, as well as water
vapor. T he
two critical physical components of life
on earth are water and carbon. Distances between objects in the
universe are so
ridiculously large that we measure distance by the time it takes light,
traveling at 186,000 miles per second, to get from its source to any
other point.
It takes about eight minutes for sunlight to reach the earth, and about
a
second and a half for the moon to reflect sunlight towards the earth.
To put it
another way, you see the sun as it was eight minutes ago. The nearest star to the sun is Apha
Centauri, about 4.2
light years away from Earth. This means that if we could travel there
at the
speed of light, which would be a challenge since, according to
Einstein, we’d
have to be pure energy (Han Solo’s warp speed?... maybe a “worm hole”),
and
would have to be somehow reassembled at our destination, it would take
over
four years for our space ship to reach Alpha Centauri, and another four
plus
years for our astronauts to message back to earth, “okay.. we’re here…
what
should we do?” When we begin serious space travel and exploration,
there will
be generations of astronauts on ships, who have never even been on
their home
planet. If there’s a God or a Mother Nature who
designed the
universe, they must have a wickedly sharp sense of irony. Why design it
in such
a way that living beings can detect billions of other stars, spread
over
millions of other galaxies, but with such absurdly long distances
between them that
there would be no chance of humans ever reaching the Kuiper Belt, the
outer
limits of our quaint little solar system, never mind getting to other
planets
in other solar systems? Talk about scary predictions, the late
astro physicist
Steven Hawking, judging by what he saw us doing to our planet, said
we’ll have
to leave Earth within the next hundred years. I recall reading at some
point
that the two most shocking headlines in a future world, would be first,
that
Jesus Christ returned, although in today’s crazy fake news political
environment, he’d have to perform several indisputable miracles to be
taken
seriously. The second headline would be the confirmation of life on
other
planets, and here is where our subject gets really interesting. It all starts with that periodic table
of the elements we
hated in Chemistry class. There are 118 elements recognized in the
table today,
but the thing to understand is that the entire universe is composed of
those
elements. Does this mean that we won’t discover more elements? No… but
what it
does mean is that the composition of the universe is probably much
simpler in
principle than you might imagine. Carl Sagan once speculated that it
may be
regional prejudice to suppose that all life in the universe must be
carbon
based, and one of his books had a cartoon, showing a parched
extraterrestrial
crawling across a planetary desert screaming “ammonia… ammonia!” What we do know is that the universe is
about 14 billion
years old, and that our star, the sun, is a retread composed of the
remains of older
novas or supernovas, exploded stars in which the battle between gravity
and the
outward radiation of nuclear burning, has been won by gravity. Our sun
is a
garden variety star, large enough that the collapse of stellar material
drove
temperatures inside the star high enough to cause nuclear reactions,
usually at
about 15 million degrees F (27 million degrees in our sun today),
mostly
turning hydrogen, by far the most common element in the universe, into
helium,
a process that tends to resist the further gravitational collapse of
the star. That’s what our universe is in essence,
a battle between
gravity and nuclear burning, using mainly hydrogen and its offspring,
the
heavier elements, on a vast stage which includes light and dark energy.
The sun
is about 4.5 billion years into an expected lifespan of maybe 10
billion years,
as it slowly turns its hydrogen into helium, residing in a nondescript
and
unfashionable outer arm of the Milky Way, a spiral galaxy, spinning at
130
miles per second, at least in our sun’s neighborhood. Much larger stars like blue giants,
burn hotter and go
through their nuclear material much faster than slow pokes like our
sun, often
ending their shorter lives in spectacular novas and supernovas, which
blast the
stars remaining components out into space, supplying material for new
stars and
their planets to build on. When you look at the Pleides in the night
sky,
you’re looking at a stellar nursery. In its final stages, our sun will
bloat
into a red giant, encompassing all the inner planets from earth to
Venus and
Mercury, before shrinking and flickering out to become a white dwarf. Assuming we haven’t extinguished
ourselves by then through
nuclear holocaust, political madness, misguided religious fervor,
extreme
climate change, poisoning of the earth for creatures such as we are, or
managed
to leave for greener planets, that will be the end of mankind. It will
no
longer matter what your address was, what you and your kids have
accomplished,
or which God you had to thank for judgement day. Revelations Big Time. When a star begins to burn iron, it
uses up more energy than
it creates, which lessens its resistance to gravitational collapse,
which
causes such high temperatures in the star that a supernova may result.
We are
literally star children, as everything in our world, including our
bodies was
originally created in the nuclear reactions within stars. When you die,
that
amalgam of atoms and molecules which we call you will simply pass into
other
forms and functions, just as you were made up of components which had a
much
longer history than you’ll have. Here’s the intellectual dilemma, and
the question which
threatens so many of the beliefs we hold dear. Since the universe is
composed
of known elements, and since we know which processes led from single
cell
creatures to the complexity of man, higher mammals and corvids (crows,
ravens
jays etc.) on earth, what are the odds that we are the only planet in
the Milky
Way, never mind the universe, which features life capable of what we
call
thinking, with its possibilities of discovery, innovation and creation? Discovering other planets is a fairly
recent development,
but since 1995, astronomers have identified 3,800 other planets, mostly
within
our own galaxy, with the understanding that planets going around stars
are at
least as common as solo and binary stars. What percent of those planets
are
within the Goldilocks Zone of their stars, and feature water and
carbon? Does
anyone seriously doubt that, taking the universe as a whole, the answer
will be
in the thousands, if not millions? Like many amateur space buffs, I always
assumed there was
life on other planets, but that the incredible distances between stars
and
galaxies made it almost impossible to imagine contacts from other
civilizations
in our galaxy. The old joke that advanced extraterrestrials are
watching old
reruns of “I love Lucy”, or more probably have recognized our
fascination with
violence in entertainment, which may encourage them to remain silent
notwithstanding, there are recent developments which are shaking the
foundation
that we’re alone. TV waves probably disipate within a third of a light
year,
and that doesn’t simply mean that visible images break up, and are only
recognizable as some sorts of intelligent signaling. Since the nearest
star to
the sun is 4.2 light years away, it’s safe to assume that E.T. is not
watching
our old reruns. There are thousands of UFO sightings
every year, the vast
majority of which have natural explanations, such as weather balloons,
meteors
or seeing the planet Venus in opposition around sunset, etc. In the
early
seventies, I was with a group of friends on the deck of an A frame in
Hardwick
Vermont, and we all agreed that, stoned as we were, we saw several
lights in
the sky, moving around in ways that no modern aircraft could do. The problem today is that many
eyewitness accounts come not
from groups of impaired friends, but from distinguished, well-educated
people,
many of them pilots, for example an astronaut, a former Governor of
Arizona who
happens to be a pilot, in other words, people whose opinions can not be
written
off. Several instances of military aircraft, many with multiple
passengers
who’ve agreed they saw some self-propelled object doing things modern
aircraft
can not do. Even NASA and the Pentagon have admitted that they have no
explanation for many of these sightings. But what about those great distances
between solar systems,
and the enormous expenditure of research, money and materials that
might
discourage more advanced civilizations from embarking on visiting earth
to try
to understand those primitive earthlings who believe that going to the
moon was
a big deal? I am no physicist, but is it possible
that Hollywood and all
those Star Trek and Star Wars takeoffs are right, and that the speed of
light
is not the limiting speed in the universe? What if physics doesn’t end
with
relativity and quantum mechanics? You tell me. What about the value of future shock?
Think of the world’s
established religions, never mind the hundreds which have come and
gone. Any
civilization which could visit earth would be by definition far
advanced over
our own, and therefore, if they were created by a God, probably
considered
priority in the creator’s mind, whatever that means. What if our Garden
of Eden
was just one of many of thousands of instances of life developing on a
planet
somewhere. What’s at stake here? While most of us
are all wrapped up in
worshipping or hating Trump, following the Kardashians or our favorite
sports
team, there will be several earth shaking consequences. For starters,
the
belief which most people hold, that there is an all-knowing infinite
creator
who actually listens to their prayers, their hopes and fears. From a
logical
perspective, does it make sense to believe that a creator started the
universe
14 billion years ago with the goal of creating people, but waited until
200,000
years ago to create our kind on a planet orbiting a secondhand star,
who didn’t
find out who God was until the Zoroastrians and Jews started the first
monotheistic religions a few thousand years ago. What if we are not the
end
goal and purpose of nature? Interesting reading: UFOs:
Generals, Pilots, and Government Officials Go on the Record, By: Leslie
Kean. Extraterrestrial:
The First Sign of Intelligent Life Beyond Earth By: Avi
Loeb |
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