"This picture is our radio telescope on Farside, the Moon," he said. "It is never visible from the Earth, because that portion of the Moon's surface is permanently turned away from us, for which reason we selected it for the site of the telescope. There is no electrical interference of any kind. The instrument is made up of 33 million separate dipole elements, aligned with an accuracy of one part in several million. Its actual size is an approximate circle eighteen miles across, but by virtue of the careful positioning its performance is effectively equal to a telescope with a diameter of some twenty-six miles. Next slide, please."
Click. The picture of the huge RT display swept away and was replaced by another similar—but visibly smaller and shabbier—construction.
"This is the Russian instrument, gentlemen. And ladies. It is approximately one quarter the size of ours in diameter. It has less than one-tenth as many elements, and our reports—they are classified, but I am informed this gathering is cleared to receive this material? Yes—our reports indicate the alignment is very crude. Even terrible, you could say.
"The difference between the two instruments in information-gathering capacity is roughly a hundred to one, in our favor. Lights, please.
"What this means," he went on smoothly, smiling at each of the persons around the table in turn as he spoke, "is that if the Russians say ‘no’ and we say 'yes,' bet on 'yes.' Our radio telescope can be trusted. Theirs cannot."
The meeting shifted uneasily hi its chairs. They were as anxious to believe Knefhausen as he was to convince them, but they were not sure.
Representative Belden, the Chairman of the House Ways and Means Committee, spoke for all of them. "Nobody doubts the quality of your equipment. Especially," he added, "since we still have bruises from the job of paying for it. But the Russians made a flat statement. They said that Alpha Centauri can't have a planet larger than one thousand miles in diameter, or nearer than half a billion miles to the star. I have a copy of the Tass release here. It admits that their equipment is inferior to our own, but they have a statement signed by twenty-two academicians that says their equipment could not miss on any object larger or nearer than what I have said, or on any body of any land which would be large enough to afford a landing place for our astronauts. Are you familiar with this statement?"
"Yes, of course, I have read it—"
"Then you know that they state positively that the planet you call 'Alpha-Aleph' does not exist."
"Yes, that is what they state."
"Moreover, statements from authorities at the Paris Observatory and the UNESCO Astrophysical Center at Trieste, and from England's Astronomer Royal, all say that they have checked and confirmed their figures."
Knefhausen nodded cheerfully. "That is correct, Representative Belden. They confirm that if the observations are as stated, then the conclusions drawn by the Soviet installation at Novy Brezhnevgrad on Far-side naturally follow. I don't question the arithmetic. I only say that the observations are made with inadequate equipment, and thus the Soviet astronomers have come to a false conclusion. But I do not want to burden your patience with an unsupported statement," he added hastily as the Congressman opened his mouth to speak again, "so I will tell you all there is to tell. What the Russians say is theory. What I have to counter is not merely better theory, but also objective fact. I know Alpha-Aleph is there because I have seen it! Lights again, Major! And the next slide, if you please."
The screen lit up and showed glaring bare white with a sprinkling of black spots, like dust. A large one appeared in the exact center of the screen, with a dozen lesser ones sprinkled around it. Knefhausen picked up a flash pointer and aimed its little arrowhead of light at the central dot.
"This is a photographic negative," he said, "which is to say that it is black where the actual scene is white and vice versa. Those objects are astronomical. It was taken from our Briareus Twelve satellite near the orbit of Jupiter, on its way out to Neptune fourteen months ago. The central object is the star Alpha Centauri. It was photographed with a special instrument which filters out most of the light from the star itself, electronic in nature and something like the coronascope which is used for photographing prominences on our own Sun. We hoped that by this means we might be able actually to photograph the planet Alpha-Alepho We were successful, as you can see." The flashpointer laid its little arrow next to the nearest small dot to the central star. "That, gentlemen, and ladies, is Alpha-Aleph. It is precisely where we predicted it from radio-telescope data."
There was another buzz from the table. In the dark it was louder than before. The Secretary of State cried sharply, "Mr. President! Can't we release this photograph?"
"We will release it immediately after this meeting," said the President.
Roobarooba.
Then the committee chairman: "Mr. President, I'm sure if you say that's the planet we want, then it's the planet. But others outside this country may wonder, for indeed all those dots look about alike to me. I wonder if Knefhausen could satisfy a layman's curiosity. How do we know that's Alpha-Aleph?"
"Slide Number Four, please—and keep Number Three in the carriage." The same scene, subtly different. "Note that in this picture, gentlemen, that one object, there, is in a different position. It has moved. You know that the stars show no discernible motion, of course. It has moved because this photograph was taken eight months later, as Briareus Twelve was returning from the Neptune flyby, and the planet Alpha-Aleph had revolved in its orbit This is not theory, it is evidence; and I add that the original tapes from which the photoprint was made are stored in Gold-stone, so there is no question that arises of foolishness."
Roobarooba, but in a higher and excited key.
Gratified, Knefhausen nailed down his point. "So, Major, if you will now return to Slide Three, yes— And if you will flip back and. forth, between Three and Four, as fast as you can— Thank you." The little black dot called Alpha-Aleph bounced back and forth like a tennis ball, while all the other star points remained motionless. "This is what is called the blink comparator process, you see. I point out that if what you are looking at is not a planet, it is, excuse me, Mr. President, the damnedest funniest star you ever saw. Also it is exactly at the distance and exactly with the orbital period we specified based on the RT data. Now, are there any more questions?"
"No, sir!" "That's great, Kneffie!" "dear as a cow's ass to the stud bun." "I think that wraps it up." "That'll show the Commies."
The President's voice overrode them all.
"I think we can have the lights on now, Major Merton," he said. "Dr. Knefhausen, thank you. I'd appreciate it if you would remain nearby for a few minutes, so you can join Murray and myself in the study to check over the text of our announcement before we release these pictures." He nodded sober dismissal to his chief science advisor and then, reminded by the happy faces of his cabinet, remembered to smile with pleasure.
CONSTITUTION TWO
Sheffield Jackman's log. Starship Constitution. Day 95.
According to Letski we are now traveling at just about 15% of the speed of light, almost 30,000 miles per second. The fusion thrust is operating smoothly and well. Fuel, power, and life-support curves are sticking tight to optimum. No sweat of any kind with the ship, or, actually, with anything else.