Slashdot Mirror
Lonely Planets
Grinspoon, though, never falls victim to the temptation to proclaim that intelligent aliens are a scientific certainty, nor does he ridicule those who come to a belief in aliens by a less-than-scientific route.
The book begins with a historical perspective, telling the old stories of Copernicus, Galileo, Kepler and Lowell in fresh and surprising ways. This makes even these chapters recommended reading for experts as well as newcomers to astronomy. Grinspoon is not content to repeat the usual pieties about these scientific "saints." For instance, he reveals that Galileo did much to intentionally antagonize the pope in his writings about the solar system. He also discusses the more off-the-wall beliefs that many early luminaries of science have held. He explores the link between the end of the earth-centered view of the universe and the beginning of a centuries-long popular craze for the idea of planets around every sun, and intelligent beings on every planet.
The second section of the book deals with the science of suns, planets, moons, and the potential life in, on and around them. All of the popular candidates, including Mars, Europa, and Titan, are discussed in nonscientist-friendly detail. Unearthly life is a broad subject, and Grinspoon does not cover it with perfect evenness. His chapters on cosmology, the early Earth, chemical evolution, and the cambrian explosion are great stuff; but after a quality discussion of DNA, he builds up the idea that RNA most likely evolved first, with ever quite saying what RNA is or explaining its role in our cells today.
But this is a rare omission. The science in the book is sound, and the footnotes and asides consistently entertaining. No song reference or movie quote is left unquoted, always to good effect. Throughout, Grinspoon maintains an almost unheard-of humility, always careful to point out how much we simply don't know about life on Earth, let alone life elsewhere.
The third and final section of the book could never have been written by a less honest or more egotistical scientist. It may also help that he plays in a reggae band. Titled "Belief," part three begins with a discussion of the development and present state of SETI, the Search for Extraterrestrial Intelligence, as nearly anyone with a screensaver knows. Grinspoon explores Fermi's paradox -- if they exist, why haven't they arrived on Earth, or at least said hello by radio? He doesn't duck the hard questions, and he brings us the human story of the SETI pioneers on both sides of the Iron Curtain. He acknowledges that the strong desire to believe in aliens is as something almost religious for many people, including scientists. And he gives the UFOlogists their due, taking a fascinating journey to the San Luis Valley of Colorado. If something really hasn't been adequately explained, he acknowledges that: "there are mysteries. Are we unfaithful to the church of Science if we admit that there are mysteries?" But he does point the finger at a few flimflam artists, and doesn't hide his disappointment with certain alien-visitation true believers who should probably know better.
Maybe the temptation to believe is not so hard to forgive. Where our knowledge is imperfect, our beliefs and hopes always become entwined. Grinspoon ends the book with a meditative chapter on "astrotheology," pulling together the threads of science and faith, exploring the moral implications of intelligent life elsewhere and sharing his own beliefs in the matter.
I recommend this book both for space buffs and for less "scientific," less skeptical readers on their gift lists. The book is worth reading for many reasons -- engaging writing, a friendly introduction to the science involved, eye-opening history, and a chance to learn a skilled planetologist's best guesses at what we may discover living or not living on, in or around Mars, Europa, and yes, Venus. Not since Sagan and Asimov passed away has there been a science writer with such a voice.
Will anyone hate this book? Maybe -- new agers, pot-haters, and supporters of the Bush administration could get their noses out of joint... but only if they read every footnote, and completely fail to take a joke. Most will be as entertained and informed as the rest of us.
You can purchase Lonely Planets from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.
after all, we are all lonely and most of us are the size of planets...
Which is perfect justification for us to destroy our planet, making it undesirable for any advanced alien race thinking of invading. SUVs for everyone!
Of course we're still screwed if they're just mean. Blah.
And revolving at nine hundred miles an hour,
That's orbiting at nineteen miles a second, so it's reckoned,
A sun that is the source of all our power.
The sun and you and me and all the stars that we can see
Are moving at a million miles a day
In an outer spiral arm, at forty thousand miles an hour,
Of the galaxy we call the 'Milky Way'.
Our galaxy itself contains a hundred billion stars.
It's a hundred thousand light years side to side.
It bulges in the middle, sixteen thousand light years thick,
But out by us, it's just three thousand light years wide.
We're thirty thousand light years from galactic central point.
We go 'round every two hundred million years,
And our galaxy is only one of millions of billions
In this amazing and expanding universe.
The universe itself keeps on expanding and expanding
In all of the directions it can whizz
As fast as it can go, at the speed of light, you know,
Twelve million miles a minute, and that's the fastest speed there is.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger all down here on Earth.
I could not justify my existence if I were a turkey farmer. Would I terminate myself? Undoubtably, yes.
How long do we have until they come and bulldoze the Earth in order to make way for a new interstellar highway?
In the words of the Almighty Douglas Adams:
Population: None.
It is known that there are an infinite number of worlds, simply
because there is an infinite amount of space for them to be in.
However, not every one of them is inhabited. Therefore, there
must be a finite number of inhabited worlds. Any finite number
divided by infinity is as near to nothing as makes no odds, so
the average population of all the planets in the Universe can be
said to be zero. From this it follows that the population of the
whole Universe is also zero, and that any people you may meet
from time to time are merely the products of a deranged
imagination.