Cassini and the Mind of Man
I might have been looking at the eye of Hurricane Irma, but
no, I was looking at the surface of Saturn. The pictures were taken by NASA’s spacecraft
Cassini as it plunged through Saturn’s iconic rings on a suicidal drive toward
the heart of the gas giant.
Parenthetically, I was also looking at a government program that delivered more than it
promised. NASA is a consistent
performer, but Cassini could well be their signature success.
The pictures I was looking at were taken after Cassini threaded its way through
Saturn’s rings and swung over the North Pole of the planet. The huge eye of the hurricane type
storm was 1000 miles wide.
That is, the eye (just the eye—not the entire storm) was 1000 miles
wide! And the eye was inside a six-sided
weather pattern known as the hexagon (a configuration that changes colors with the
seasons, even as it travels across Saturn). This hexagon of wild weather has been swirling its high
voltage energy above the planet since 2013!
These and
some 100 other pictures were taken over 24 hours, but they didn’t get back to
Earth until Thursday. [Space is
deep.] Yet, with all the “ifs” involved,
and while using its 13 foot-wide antenna as a shield against rocks and ice
particles, Cassini still made contact with NASA’s Deep Space Network at
Goldstone Complex Complex in California’s Mojave Desert “…right on schedule.” In an era where many programs seem to fall short of their goals, this space craft has exceeded every expectation.
Cassini
has been in space for over 20 years. It
made its final plunge into Saturn’s atmosphere on September 15, and sent
back data the whole way. This was a
spacecraft that went down swinging.
Saturn (our second largest planet) is arguably
the most identifiable and beautiful planet in our Solar System. The Assyrians observed it in 730 BCE and
called it the Star of Ninib. The Greeks
named it Kronos, after their god of agriculture and the Romans carried that
over to name it for their god of agriculture, Saturn. The rings (rocks and ice, separated in
specific bands) are magnificent. Other
of our gas planets have rings, but none of them are as pronounced as those of
Saturn. It has 62 moons and one, Titan,
is covered in ice, under which is a planet-wide ocean with self-generated
heat. This moon has every environmental
requisite of life. [If life isn’t there,
it should be.]
Cassini has now completed its thirteen-year mission, circling Saturn
and gathering information like a faithful and cooperative servant. When it made its death dive into the planet
it continued to transmit precious data for a minute before it disintegrated in
heat and high pressure. Right to the
end, it did exactly as it was told, planned and programmed to do. It would be easy to anthropomorphize Cassini but we don't have to; its humanity was carried in its programming, construction and its very inception. It was the mind of man that made this metal live.
My husband is
the best science teacher I have ever known.
He used to tell students and adults that we study the Solar System and
the Universe to compare those “neighborhoods” with the neighborhood we already
know—our Earth. Those comparisons help
us appreciate what we have, but they also help us imagine a reality different
from what we know.
Cassini is an
example of all the best that education, science and technology can
provide. Knowledge for the sake of
knowledge, but wisdom for the sake of humanity. Every time we remind our schools to spend a little more time, space and mental energy on STEM classes we move this thinking along.
Encourage the
next generation of scientists and keep the faith.
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