Planetfall: A New Anthology of Our Expeditions Across the Solar System

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Earth, Mars, Jupiter, and Saturn: Highlights from the last decade of space photography

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"We're all huddled here around the same campfire -- the sun," says author Michael Benson. (NASA)

We began haltingly, with rockets that scraped the edge of space with their noses; moved on to orbiters that circled us in our small, atmospheric cocoon; and, gradually, we grew more confident, sending not just probes and dogs and monkeys, but our own flesh and blood to the moon.

Today, we have humans living on a semi-permanent basis in space, rovers prowling about Mars, and spacecraft whizzing by planets beyond the asteroid belt. Voyager I, our farthest-sailing creation yet, will soon leave the bubble of our sun's winds and cross into interstellar space -- a boundary we've only begun to understand in the 35 years since Voyager launched. We haven't exactly conquered the solar system, but we have laid our claim.

At the same time, we are getting a better idea of just what a tiny speck in the universe our solar system is. Our telescopes both in orbit and on the ground have provided us with ever-clearer pictures of the universe beyond our solar neighborhood: nearby stars, local galaxies, and the deepest reaches of the universe. In 1995, scientists aimed the Hubble telescope at a tiny, blank patch of the night sky; they found it teeming with *galaxies*. NASA's Kepler mission has identified thousands of probable planets orbiting stars just in the local region of the Milky Way. Just two decades ago, we didn't know there was a single one. Last week, we learned there is at least one planet orbiting Alpha Centauri B, located in the system of stars closest to our own.

But despite all of this -- despite our Voyagers' journey to the heliosphere's edge and despite our portraits of thousands of remote galaxies -- we also know that our solar system is, well, huge. After all, it has taken Voyager 35 years traveling at some 35,000 miles per hour to get to the edge. And it's magnificent too: There are Saturn's icy rings, Jupiter's three-times-the-diameter-of-Earth boiling storm, and Europa's oceans. And all of these are tiny -- tiny -- when compared with the sun, which alone makes up some 99.8 percent of all the mass in the solar system, weighing in at 4,385,214,857,119,400,000,000,000,000,000 lbs, or 333,060.402 Earths.

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The solar system to scale (Wikimedia Commons)

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Almost as though timed to remind us of this majesty, a new book, Planetfall by Michael Benson (Abrams), showcases this small, familiar neighborhood of the galaxy in a way that feels neither small nor familiar. Benson, a longtime self-described "hard-core space freak," narrates the visual journey across our solar system with a rich, beautiful text. But it is his curation -- the selection of portraits of "a kind of Calder mobile of related landscapes all lit by the same key light" -- that adds art to the underlying science. "Human beings," Benson writes, "have been fascinated with the sky since prehistory. It's us, the generations alive today, who get to see these worlds for the first time." These images, all of which were taken since the year 2000, are something to stare at for hours, to marvel at, to behold.

The title, Planetfall, is meant as a 21st-century version of landfall -- that moment when, after months in the void, you spot an edge, a little bit of planet, *a place*, coming in to view. But planetfall has a secondary meaning as well, one that hits a bit closer to home. "If we look closely at our planet in images taken from space during the last decade, it's hard not to notice some troubling signs," Benson observes. He continues, "One definition of the term "planetfall" comes to mind: a decline in the biosphere of a planet, whether due to actions by indigenous species or other causes." [Emphasis in original]

Benson's tour begins with Earth and moves outward from there, covering Mars, the Asteroid Belt, Jupiter, and Saturn (the Sun gets a chapter too, albeit following Earth, out of geospatial order). In the selection of images below, I've highlighted the four planets Benson includes (Earth, Mars, Jupiter, and Saturn), and for each planet I've selected one picture that gives you more of a sense of the planetary body as it hangs in the void of space (as Earth below) and one close-up (click on the images to expand). With Earth and Mars, the close-ups are quite close, giving you a sense of the terrain. But for the planets farther out in our system, ones we cannot and have not reached with the same intimacy, the close-ups and distance shots are more similar, a reminder of how much is yet to be explored and seen.

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The Milky Way over the south Indian Ocean. The nucleus of our home galaxy is directly at the terrestrial horizon, to the left of the faint Comet Lovejoy. Mosaic composite photograph. ISS 030 crew, December 29, 2011 (Image Science and Analysis Laboratory, NASA JSC/Michael Benson/Kinetikon Pictures. (c) All Rights Reserved.)

One realization that comes from looking endlessly at space images, "is that for all the visual splendor and eerie, chilling beauty, there isn't one place out there that can match the beauty and, you know, fecundity, the temperate livability of Earth," Benson wrote to me. 

"We were never expelled from Eden, you know, it's yet another Judeo-Christian misconception about the nature of our situation. ... And [yet] there are a number of highly disturbing images of Earth in which you see clearly, in one case from a distance of about 64,000 miles, that there's something rotten going on. In that specific image, you can see dense smoke from Amazon jungle burn-off filling the atmosphere over most of South America. This is of course a total scandal, the hallmark of an out-of-control species." 

In the book, Benson includes images of the Earth dominated by the mark humans have left on the planet, still the only place in the universe where life is known to exist, with all the beauty and destruction it entails.

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Roads, walls, and windbreaks define a collective farm near the city of Komsomolets in northern Kazakhstan. Landsat 7, April 14, 2002 (NASA/USGS EROS Center/Michael Benson/Kinetikon Pictures. (c) All Rights Reserved.)

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Rebecca J. Rosen is a senior editor at The Atlantic, where she oversees the Business Channel. She was previously an associate editor at The Wilson Quarterly.

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