He used his hands to rotate himself. There was an odd vehicle about seven meters long at the aft end of the capsule. Its nose was shoved into the capsule thrust chamber, and it reminded Aeneas of dogs. An open framework of thin aluminum bars with-saddles? But why not? A mirrored helmet atop bulky metallic shining coveralls perched on the nearest saddle. Aeneas couldn't see a face inside it.
"One of the ones who listen, eh?" the voice said, "Jolly good. Now you see that line above you?" Aeneas looked up and saw an ordinary nylon rope. It seemed to be a solid rod. "Get hold of it and clip it on your belt. After that, reach inside and unclip your own line. And don't be slow about it." There was a pleasant note to the voice, but it expected to be obeyed.
Aeneas complied quickly. He was reeled very slowly toward the spindly personnel carrier, and with a lot of difficulty and help from the pilot managed to get astride one of the saddles. His feet slipped easily under loops in the thing's "floor"-Aeneas supplied the quotation marks because there was only a minuscule grillwork there-and a safety harness went around his waist.
Now that he was in the carrier, he could look around, and he did unashamedly.
The launch crew had cut it pretty fine, Aeneas told himself. Heimdall floated less than a kilometer away.
It looked like a junkyard. Two large curved cylindrical sausages on the ends of cables rotated around each other at a distance of nearly half a kilometer. The sausages had projections at crazy angles: solar cell arrays, shields, heat dissipation projectors connected to the station by piping, antennae. There was an inflated tube running from each cylinder to an amorphous blob between them, and part of the center structure rotated with the cylinders. Most of the center did not rotate.
Other junk-the pregnant machine-gun shapes of supply capsules, cylinders of all sizes, inflated structures of no recognizable shape-floated without apparent attachment near the axis of spin. Solar panels and orange sunshades lay everywhere. Heimdall had no real form.
"Quite a sight, isn't it?" his companion said. "Name's Kit Penrose, old chap. Officer in charge of everything else. Weight control, atmosphere recycling, support systems, all the marvy things like that. Also the taxi driver. Who're you?"
" MacKenzie."
"Oh, Christ, a bloody Scot. You don't sound one. Engineer?"
Aeneas shrugged, realized the gesture couldn't be seen, and said, "Like you. Little of everything, I suppose. And I'm American."
"American, en? Whoever or whatever you are, the ground crew seemed worried about you. Well, you're OK. Here we go." He did something to the panel in front of him and the spindly structure moved slowly toward the satellite. His capsule was still attached at the nose. "We'll just take this along, eh?" Penrose said.
"Yes, my kit's in there." And I may need everything in it, Aeneas thought.
It took a long time to cover the short distance to the station. Kittridge Penrose burned as little mass as possible. "Energy's cheap up here," he told Aeneas. He waved carelessly at the solar panels deployed everywhere and at mirrors fifty meters across that floated near the station. The mirrors were aluminized mylar or something like it, very thin, supported by thin fiberglass wands to give them shape. "Plenty of energy. Not enough mass, though."
As they neared Heimdall, it looked even more like a floating junkyard. There was a large cage of wire netting floating a hundred meters from the hub, and it held everything: discarded cargo and personnel capsules, air tanks, crates, and cylinders of every kind. It had no door except an inward pointing cone-an enormous fish trap, Aeneas thought. They headed for that, and when they reached it and killed their approach velocity, Penrose unfastened himself from the saddle and dove into Aeneas' capsule.
He emerged with two sealed cylindrical fiberglass containers of gear Aeneas had brought up and clipped them to the wire net of the cage. He did the same with the spindle vehicle they'd crossed on, then did something that released the personnel capsule from its faintly obscene position on the taxi's nose. Penrose gripped the cage with one hand and strained to shove the discarded capsule with the other.
Nothing seemed to happen. Then the capsule moved, very slowly, down the tube into the cage; the motion was only barely apparent, but Penrose turned away. "Takes care of that. We'll have a crew come take it apart later. Now for you. I'll carry your luggage."
He reached down and pulled the safety line out of the reel on Aeneas' belt and clipped it to his own. "Now you're tethered to me, but if you drift off and I have to pull you in, I'll charge extra for the ride. Follow me, and the trick is, don't move fast. Keep it slow and easy."
They pulled themselves across the wire cage. It looked like ordinary chicken wire to Aeneas, a more or less sphere of it a hundred meters in diameter. There were other blobs of wire cage floating around the station. When they got to the side of the cage facing Heimdall, Aeneas saw a thin line running from the cage to the nonrotating hub between the cylinders. Up close the rotating cylinders on their cables and inflated tunnel looked much larger than before; twenty meters in diameter, and made of segments, each segment at least twenty meters long. They pulled themselves gingerly along the tether line to an opening ahead.
There was no air in the part of the hub they entered. Penrose explained that the interface between rotating and nonrotating parts was kept in vacuum. Once inside, Aeneas felt a gentle tug as the long tube, leading to the capsules at the end of the tether line pushed against him until he was rotating with it.
Before Aeneas could ask, Penrose pointed up the tube away from the direction they were going. "Counterweights up there," he said. "We run them up and down to conserve angular momentum. Don't have to spend mass to adjust rotation every time somebody leaves or comes aboard. Course we have to use mass to stop ourselves rotating when we leave, but I've got an idea for a way to fix that too."
As they descended, Aeneas felt more weight; it increased steadily. They passed into the first of a series of multiple airlocks. Then another, and another. "Hell of a lot easier than pumping all this gup every time," Penrose said. "Feel pressure now?"
"A little. It's easier to exhale."
"You could breathe here. Not well." They passed through another set of airlocks and felt increasing weight; after that it was necessary to climb down a ladder. The walls of the silo they were descending were about three meters in diameter. They stood out stiffly from the pressure and seemed to be made of the same rubberized cloth as his pressure suit, but not porous or permeable as his suit was.
Eventually they reached a final airlock, and below that the silo had metallic walls instead of the inflated nylon. The final airlock opened onto a circular staircase and they climbed down that into the cylindrical structure of the station itself.
Dr. Herman Eliot was a thin man, no more than thirty-five years old, with bifocal spectacles and long hair that curled at his neck; it was cut off short in front and at the sides so that it wouldn't get in his eyes, and it was uncombed: a thoroughly careless appearance. He had a harried expression, and his desk was littered with ledgers, papers, books, two pocket computers, and a dozen pencils. There were compartments in the desk for all that gear, but Eliot didn't use them.
Kit Penrose clucked his tongue as they entered. "Sloppy, Herman. Sloppy. Suppose I had to take spin off?"
Eliot looked annoyed. "You'd like to make up production schedules, then?" he demanded. He did not smile.