Semper Mars. Ian Douglas

thousands of years ago. Things like the Sphinx are supposed to be proof the aliens were here, but the UN government doesn’t like that.”

      Alexander sighed. As was often the case, the layman’s view mingled a little fact with a great deal of fancy. “There were definitely aliens in the solar system half a million years ago,” he explained. “They left traces at Cydonia…though you might be surprised to hear that there are still quite a few scientists who argue that the Face and the so-called pyramids on Mars are natural features.”

      “No shit?”

      “Most of us think the Face, at least, was carved by someone…something, and the Fortress-Ship complex is obviously artificial, though after half a million years of dust storms and weathering, there’s not much left of it. But there is room for debate. That’s what science is all about, after all, testing hypotheses.”

      “How come some scientists still think that Face-thing is natural? I’ve seen three-vids of that thing, and it gives me the crawlies.”

      “Well, we still can’t find a decent reason for a sculpture of an essentially human face to be carved into a mesa on Mars at a time when Homo sapiens was just appearing on Earth. The aliens, whoever or whatever they were, were not human. I guess it’s easier to believe that the Face is a wind-carved freak of nature than it is to believe it could be a deliberately sculpted likeness of us.”

      “Well, that’s what all the nutcase new religions and shit are all about, ain’t it? That the aliens tinkered with apes and turned ’em into people? Like in that old movie that everybody’s talkin’ about now, 2000.”

      “2001: A Space Odyssey,” he said, correcting the Marine again. “And it wouldn’t have been apes, not unless you count humans as a kind of ape. Homo erectus was the dominant hominid line on Earth half a million years ago.”

      “Sure, whatever. But, like I was sayin’, everybody on Earth, it seems like, either thinks the aliens were gods or thinks that we’re tryin’ to slip one over on ’em to take away their religion, or whatever, and the UN johnnies all seem dead sure that all the stuff about aliens visiting Earth back then is crap. Like it couldn’t possibly happen, y’know?”

      Alexander smiled. “I know.” He’d been in the eye of that particular storm for a long time. In fact, he had his own opinions about some of the more improbable sites on Earth…not that aliens had built them, necessarily, but the possibility of alien inspiration and technical help was not unthinkable.

      Still, it was dangerous territory to tread upon. The discoveries of the past few decades had transformed traditional science…but they’d also caused an explosion in the pseudosciences. The old “ancient astronaut” theories had come back with a vengeance, spawning volume upon volume of crackpot ramblings, pop-science gibberish, and even a horde of new religions.

      Hoping to end the conversation, he deliberately checked his wrist-top, calling up the time. Before the MSL rendezvous, everyone’s personal computers had been updated to Mars time. The planet’s rotation was slightly longer than Earth’s and, therefore, could not be brought into synch with the GMT used aboard all spacecraft. A Martian day was called a sol; it was divided into traditional hours and minutes, as on Earth, but had an extra thirty-seven-minute catch-up period, called soltime, added after local midnight. The young Mars colony counted sols instead of days, beginning with the official establishment of the first permanently manned settlement—the base at Candor Chasma, now known as Mars Prime. Sol 1 was July 20, 2024, fifty-five years to the day after Armstrong had set foot on the moon. The current sol was 5621.

      All of which meant that Mars Mean Time, or MMT, had nothing whatsoever in common with GMT. It was now, he saw, 1740 hours at Cydonia—late afternoon—and 2126 hours in Greenwich. Of course, for the next fifteen months or so, his only interest in what time…or day…it was on Earth would be when he had to calculate the arrival or departure time of another report.

      “So,” Fulbert said, still clinging to the conversation thread, “you don’t think aliens did stuff on Earth? You know, the pyramids? Easter Island? All that shit?”

      He decided not to mention his own reservations about the Giza pyramids, at least. “Easter Island? Certainly not! We know how the local population built and raised those great stone heads, because they showed us. No mystery there at all.”

      Turning away in another attempt to end the conversation, he pressed his face against the tiny port. He could see sky above—still a dark, purplish color at the horizon turning to jet-black overhead. Below, the Martian surface spread out beneath a curved horizon, a dusty, dusky ocher color tinted with streaks of rust and gray-brown. They were still too high up for the smaller details of the surface to be visible, but he could see scattered, shadow-edged shapes that must be mountains or the jumble of chaotic terrain. He tried to orient himself. If it was late afternoon here, then north would be that way…but he didn’t know if they were even descending in an attitude that would let him see the Face or the attendant structures. It was frustratingly like trying to recognize buildings or landmarks from the air while approaching a city’s airport on Earth. For all he knew, the Cydonian ruins were on the other side of the—

      He saw it.

      My God! It’s just like they all said…but so…so unexpected….

      It was smaller than he’d thought it would be, which was why he’d overlooked it at first. Bizarre must still be twenty or thirty kilometers up. He looked down on the Cydonian Face, and it returned his wondering stare with the same enigmatic and Sphinx-like skyward gaze it had worn for half a million years.

      First captured by chance on two frames shot by the Viking 1 orbiter spacecraft in 1976, the Face hadn’t even been noticed until the early 1980s…and then the image had been dismissed as a trick of the light and of the remarkable persistence of the human mind in imposing order and facial features on random shapes, be they ink-blots on a paper, or a mile-long landform in the desert. By the turn of the century, space probes had returned better images, and NASA had—with some reluctance—acknowledged at last that there might be something there worth investigating after all. That revelation, that intelligence had carved a mile-long face into a mesa in the Cydonian region of Mars, was the last in a rapid-fire barrage of discoveries that had completed at last the long-fought Copernican Revolution. Since the 1990s, it had been known that planet-bearing stars were common, and evidence of fossilized bacteria had been discovered on a meteorite gouged from the Martian surface eons before.

      Humankind was not alone in the universe.

      Those discoveries had spurred a long-awaited renaissance in space exploration. The first manned landing on Mars, a joint US-Russian venture, had taken place in 2019 at Candor Chasma; it wasn’t until the second landing five years later that Geoffrey Cox, Anatol Kryukov, and Roberta Anders had stood at last in the shadow of that alien-carved enigma and wondered….