“More than nominal. They might indeed — in which case we’d become a has-been power in a hurry, as other breakthroughs like my heat-shield are achieved. America can’t possibly match the alien science we know is there, once it becomes available. Or — the macroscope project might founder, frightened off by talk of a death-ray from space. The average populace has a profound distrust of advanced space science, perhaps because it doesn’t match the old, space-opera conception. People might accept the notion of astronauts plunging into space fearlessly in rockets, but the ramifications of relativistic cosmology and quantum physics—”
“How about just giving the senator what he wants — a gander at the sequence, if it comes to that?”
“What would it settle? Either it would pass him by, in which case he’d have ‘proof’ that we were killing off world-famous scientists by less exotic means than claimed — an international conspiracy, naturally — or it would bite him. Then we’d have five scientists and a U.S. senator to explain.”
Ivo shrugged. “I guess you’re stuck, then.”
“Our only chance is to crack the case before he gets here. For that we need Schön even more urgently.”
“There isn’t time to fetch him from Earth now,” Afra pointed out.
Brad did not reply.
“I’m not sure Schön would help, anyway,” Ivo said. “He might not care about America, or the macroscope.”
“What does he care about?” Afra demanded.
Brad cut off any reply. “Let’s take a break. We’re acting as though no one else in the station is concerned.”
Afra started to protest, but he put his ringer to her lips and forced her to subside. Ivo could see that she accepted from Brad what she would have taken from no other person. On the face of it, her objection was reasonable. Brad had dropped a bomb in their laps with a six-hour fuse, then called intermission as though the matter was of indifferent concern. How could this spirited creature know that Brad had already done his utmost to summon the cavalry, or that the break he recommended was hardly the nonchalance it appeared? Yet she trusted him.
Oh, to have a girl like that…
The “break” was in the form of a rather elegant dinner with the Grotons. Ivo had assumed that Harold Groton was an ad hoc emissary, and had to revise his impression of the man once again. Brad’s social taste was always good.
Beatryx, Harold’s wife, was a plumpish, smiling woman somewhere in her forties, light-haired and light-eyed but probably never lovely in the physical sense. Their apartment was quite neat in an unobtrusive manner, as though the housekeeper cared more for convenience than for appearance, in contrast to the tale told by Afra’s habitat. Ivo had the impression of stepping into an Earth-building, and thought he might glimpse a street or yard if he looked out a window. If he could find a window.
He found something better. The Grotons were situated at the edge of the torus, where the white-walls would be on a tire. The station was oriented broadside to the sun, so that one wall continuously faced the light and the other remained in shadow. This was the dark side. There was a large port looking directly out into the spatial night.
“It varies with the season,” Brad said, noting the direction of his attention. “The station is a planet, technically, and does have an annual cycle. It rotates to provide weight for the personnel, and that rotation gives it gyroscopic stability. It maintains its orientation in an absolute sense while revolving about the sun, so its day becomes sidereal. Three months from now that view will be twilight, and in six it will be full noon, and they’ll have to block it off with hefty filters.”
Ivo looked out at the uncannily steady stars of this arctic night. “They’re moving!” he exclaimed, then felt foolish. Of course they seemed to be moving; the torus was spinning, so that the heaven as viewed from this window rolled over in a complete circle every few minutes as though tacked to a cosmic hub. They were the same stars and constellations he had seen from the macroscope housing, but this porthole vantage changed his perspective entirely. It was, literally, a dizzying sight.
They all were smiling. “It’s hard to believe they’re exploding outward, those stars,” he said somewhat lamely. “Most of the ones you see aren’t,” Afra said. “They’re members of our own Milky Way galaxy, a comparatively steady unit. Even the other galaxies of our local group are maintaining their positions pretty well.”
Ivo realized that he had stepped from one inanity into a worse one. But Beatryx, coincidentally, came to his rescue. “Oh,” she inquired. “I thought every galaxy was flying away from every other one at terrible speed. Because of that big argument.”
“The so-called big bang,” Brad said, without smiling this time. “You are right, Tryx. Groups of galaxies are moving apart, or at least appear to be from our lookout. But this should be a temporary state, and the reversal may already be in process, since our universe is finite and falls within the calculated gravitational radius. A few more years of observation with the macroscope, and we’ll have a better idea. Assuming we can get around the galactic interference limitation.”
“Reversal?” Beatryx was worried. “Do you mean everything will start flying together?”
“Afraid so. It will be quite crowded, by and by.”
“Oh,” she said, distressed.
“Yes, five or six billion years from now things may really be hopping.”
Brad was teasing her, a little cruelly Ivo thought, and it was his own turn to come to the rescue. “What’s this galactic interference? You’re not talking about the—”
“No, not about the destroyer. This is less blatant. Within the galaxy the scope of the macroscope is absolute — but we can’t seem to get any meaningful images from other galaxies. No natural ones, that is. Nothing but a confused jumble that fades in and out. So our assorted telescopes are still superior for the million and billion light-year range.”
“The Big Eye and the Big Ear are better for long distance than the Big Nose,” Ivo observed.
“We’re confident that advances in the state-of-the-art will bring the macroscope up to snuff, however.”
“Meanwhile, I suppose you can make do with the local galaxy,” Ivo said. “With a hundred billion or more stars to sniff in three or four dimensions.”
“And every planet and speck of dust, given time,” Brad agreed. “We can see them all, virtually — assuming we get the scopes and manpower to look.”
“Four dimensions?” Beatryx again.
“Space-time continuum,” Brad said. “Or, in human terms, our old problem of travel-time. The farther away the star we’re looking at, the older it is, because of the time it takes our macrons to get here. This doesn’t matter much when we snoop Earth, because the delay is only five seconds. The entire diameter of our solar system is only a matter of light-hours. But Alpha Centauri is four years away, and an intriguing monster like Betelgeuse — ‘Beetle-juice’ to cognoscenti — is three hundred. That civilized species on Sung, the probs, that I showed Ivo today is ten thousand years away. So our galactic map, the moment we made it, would be out of date by a variable factor ranging up to seventy thousand years. Unless we recognize that added dimension of time, we’re hopelessly fouled up.”
“Oh.”
“If we had some form of instantaneous travel — and that isn’t in the cards, in this framework of reality — we’d still have the darndest time visiting that Sung civilization, presuming that it existed today,” Brad continued. “We’d have to assume that our instant system was posted on universal rest, and that’s trouble right there. Our galaxy is moving and spinning at a considerable rate. A star thirty thousand light-years distant would be nowhere near our mapped coordinates — even if they were entirely accurate by our present frame of reference.”