Kevin J. Anderson - Climbing Olympus

That was the year Keefer had been born.

Six years after that, new algae and free-plankton strains were deployed, tweaked to optimize their metabolism in the changing environmental conditions, while the first species grew obsolete in an atmosphere becoming too rich for them.

Nineteen years after the first cometary impact, a second iceball crashed into Mars. The long-period comet Harlow-Burris, previously undiscovered, roared down into the solar system in an orbit that would take it astonishingly close to Mars on its trip through the ecliptic plane. A frantic mission was set up to give Harlow-Burris a nudge and change its course just enough to smack it into Mars, dumping more water, adding more heat, freeing more of the locked moisture and oxygen buried beneath the sands and hydrated within the rocks.

During Earth’s worldwide recession, when Keefer himself began working as a student in planetary geology, most of the cost-intensive terraforming work ground to a halt, but the wheels of nature had already been set into motion. Algae strains continued to swarm over the planet, making the Martian atmosphere thicker in the lowlands, trapping more sunlight, reducing the rocks and the oxide soil.

When humans again set foot on Mars after an eighteen-year hiatus in manned missions, things had changed dramatically. Preparations for a permanent UNSA base were made. Living modules were sent by slow cargo ships, for automatic landing and robotic assembly. Supplies were delivered in cheap but slow trajectories, preparing for the day when people could establish a long-term presence.

As he continued his headlong drive for Mars Mars Mars , Keefer had tried to engender in his twenty-year-old son Allan an appreciation for the magnitude of the terraforming task. Keefer spent two months a year with Allan, who feigned interest whenever he talked to his father; Keefer felt sorry for Allan, because the boy had no burning goal. But Keefer vowed that when he finally set foot on the surface of Mars, waving his gloved hand at the cameras for newsnets back on Earth, Keefer would be waving at Allan and no one else.

The boy was entering college, where he would probably study space science because Keefer had opened all the right doors for him, planned out his courses, urged him to follow a good curriculum, pointed the way. Keefer had worked hard to ensure that his son’s future was established, since his own new job as commissioner of Lowell Base would keep him away for years. Keefer promised himself he would pay the price just to make sure Allan had a clear trail of footsteps to follow. …

Now, hand over hand, he pushed his way to the orbiter’s bridge. Captain Rubens sat back with all lights down except for the instrument panels, enjoying the best view available on the craft. The cherub-faced captain bore a wistful expression: he would not be going down to the surface with the rest of them.

Rubens swiveled around. He wore a bulky green sweatsuit and thick socks to insulate him from the ever-present chill on the spaceship. “Ah, Commissioner! I was going to go get you. I’ve contacted Lowell Base because I thought you might want to talk to Dr. Dycek, but she’s unavailable at the moment. Think that means she’s in the bathroom, or something?”

Keefer didn’t know yet how he was going to deal with Dycek. He had never met the woman, but her work had certainly raised enough eyebrows and thrown a monkey wrench into UNSA’s neatly planned terraforming schedule. Her surprise project had placed augmented human beings on Mars years before any other permanent presence. First the unruly adins , then the more cooperative dvas set up modular buildings and infrastructures that would have taken ordinary humans many years to complete. But though the 150 or so surviving dvas still provided a good pool of laborers, their special skills were no longer really needed, now that the five human bases had expanded their complement of inhabitants.

He nodded to Rubens. “No matter. I’ll have plenty of time to talk to the commissioner once we get down. We’ve got a lot of transition details to work out, but you’ll be sitting on Phobos for two weeks refueling.”

“Yeah. Get some rest. Lander’s leaving early tomorrow morning.”

As a special treat, Captain Rubens allowed his dozen passengers to transmit brief messages back home. Keefer addressed a videoletter to Allan, admonishing him to work hard in school, making chitchat about how much he was looking forward to feeling real gravity again, not just the artificial tug from a spinning ship. He edited his message several times, vaguely dissatisfied that he could think of nothing important to say that he hadn’t already said. As Terrence Chetwynd took his place at the communications station, Keefer pulled himself back to the lounge compartment.

Looking out the porthole, he could see the dark terminator sweeping around the planet, folding the long breach of Vallis Marineris into darkness. He recognized the giant swelling of Olympus Mons, the largest volcano in the entire solar system, rising to the upper fringes of the atmosphere.

Keefer picked out three smaller volcanoes clustered at the equator: Arsia Mons, Pavonis Mons, and Ascraeus Mons, each about seventeen kilometers higher than the surrounding plains, thrust out in a great swelling called the Tharsis Bulge. Lowell Base was centered between Pavonis Mons and the tangled badlands of Noctis Labyrinthus. The other UNSA bases were located at the eastern end of Valles Marineris, at the northern and southern poles, and in the lower part of the Hellas basin.

As the orbiter’s local night approached, the twelve new arrivals went to get some rest for the last night in their cramped ship quarters. Unable to sleep, Keefer doublechecked all the preparations himself, then stewed with anxiety for another half a day. Tomorrow morning they would touch down on Mars.

In his mind he pictured the Mars he had read about as a child, the visions that had haunted his dreams after reading Ray Bradbury and Edgar Rice Burroughs. A shiver of anticipation fluttered down his back. The UNSA terraforming work was changing the real Mars into the Mars of fiction. And he was a part of it.

AN INHUMAN HAND ADDED finishing touches to the human face.

The sculpted visage stood two meters high, with pointed nose, Cossack beard, thick eyebrows, and a superior grin that scorned fear. Lighter rocks set into molded sockets gave the eyes a blank stare, looking down the slopes of Pavonis Mons. The black pupils would be painted on later.

The adin Boris Tiban squatted on the rough volcanic ground, ignoring discomfort as he watched his companion Stroganov work. The cold poked fingers through small rips in his worn jumpsuit, but could not penetrate his polymer-insulated skin.

His adin eyes were set deeply under a continuous frilled hood to shield them from the cold and the blowing dust. A transparent plastic membrane covered the eyeballs to prevent them from freezing solid. An additional membrane draped over the broad nostrils to help retain exhaled moisture. A set of auxiliary lungs mounted beneath the shoulder blades and surrounded by artificial diaphragm musculature made the adins look like grotesque hunchbacks. Their skin had a milky cast, nearly dead of feeling due to the long-chain polymers grafted onto the hide, like an insulating suit.

The sculptor cupped a lump of hot mud in one tough palm as he took a final glance at his creation. Touch-up dabs of mud on the towering bust froze into cement within a few moments in the harshness of the Martian high altitudes. Stroganov had to pry the ice-covered scraps from his numb fingers, plopping them back into the steaming bucket at his side.

“Another one finished,” Stroganov said, his voice reedy in the thin air. “I apologize for the delay. You can call the others now, Boris. Not that they haven’t been watching from the caves. …”