SFworld 版 (精华区)
发信人: by (春天的小懒虫), 信区: SFworld
标 题: 2010 (48)
发信站: 哈工大紫丁香 (Wed Oct 6 15:24:33 1999), 转信
48
Over the Nightside
To Heywood Floyd, aboard the suddenly unfamiliar -
because no longer weightless - environment of Leonov's
flight deck, the sequence of events had seemed more like a
classic slow-motion nightmare than reality. Only once be-
fore in his life had he known a similar situation, when he had
been in the back of a car during an uncontrollable skid.
There had been that same sense of utter helplessness -
coupled with the thought: This doesn't really matter - it's
not actually happening to me.
Now that the firing sequence had started, his mood
changed; everything seemed real again. It was working out
exactly as they had planned; Hal was guiding them safely
back to Earth. With every minute that passed; their future
was becoming more secure; Floyd began slowly to relax,
even though he remained alert to all that was happening
around him.
For the very last time - and when would any man come
here again? - he was flying over the nightside of the greatest
of planets, encompassing the volume of a thousand Earths.
The ships had been rolled so that Leonov was between
Discovery and Jupiter, and their view of the mysteriously
glimmering cloudscape was not blocked. Even now,
dozens of instruments were busily probing and recording;
Hal would continue the work when they were gone.
Since the immediate crisis was over, Floyd moved
cautiously `down' from the flight deck - how strange to feel
weight again, even if it was only ten kilos! - and joined
Zenia and Katerina in the observation lounge. Apart from
the very faintest of red emergency lights, it had been com-
pletely blacked out so that they could admire the view with
unimpaired night vision. He felt sorry for Max Brailovsky
and Sasha Kovalev, who were sitting in the airlock, fully
suited up, missing the marvellous spectacle. They had to be
ready to leave at a moment's notice to cut the straps securing
the ships together - if any of the explosive charges failed to
operate.
Jupiter filled the entire sky; it was a mere five hundred
kilometres away, so they could see only a tiny fraction of its
surface - no more than one could see of Earth from an
altitude of fifty kilometres. As his eyes grew accustomed to
the dim light, most of it reflected from the icy crust of
distant Europa, Floyd could make out a surprising amount
of detail. There was no colour at the low level of illumina-
tion-except for a hint of red here and there-but the banded
structure of the clouds was very distinct, and he could see
the edge of a small cyclonic storm looking like an oval island
covered with snow. The Great Black Spot had long since
fallen astern, and they would not see it again until they were
well on the way home.
Down there beneath the clouds, occasional explosions of
light flared, many of them obviously caused by the Jovian
equivalent of thunderstorms. But other glows and out-
bursts of luminescence were more long-lived, and of more
uncertain origin. Sometimes rings of light would spread out
like shock waves from a central source; and occasional
rotating beams and fans occurred. It required little imagina-
tion to pretend that they were proof of a technological
civilization down beneath those clouds - the lights of cities,
the beacons of airports. But radar and balloon probes had
long ago proved that nothing solid was down there for
thousands upon thousands of kilometres, all the way to the
unattainable core of the planet.
Midnight on Jupiter! The last close-up glimpse was a
magical interlude he would remember all his life. He could
enjoy it all the more because, surely, nothing could now
go wrong; and even if it did, he would have no reason
to reproach himself He had done everything possible to
ensure success.
It was very quiet in the lounge; no one wished to speak as
the carpet of clouds unrolled swiftly beneath them. Every
few minutes Tanya or Vasili announced the status of the
bum; toward the end of Discovery's firing time, tension
began to increase again. This was the critical moment - and
no one knew exactly when it would be. There was some
doubt as to the accuracy of the fuel gauges, and the burn
would continue until they were completely dry.
`Estimated cut-off in ten seconds,' said Tanya. `Walter,
Chandra-get ready to come back. Max, Vasili-stand by in
case you're needed. Five... four. . . three... two...
one... zero!'
There was no change; the faint scream of Discovery's
engines still reached them through the thickness of the two
hulls, and the thrust-induced weight still continued to grip
their limbs. We're in luck, thought Floyd; the gauges must
have been reading low, after all. Every second of extra firing
was a bonus; it might even mean the difference between life
and death. And how strange to hear a countup instead of a
countdown!
'... five seconds... ten seconds... thirteen seconds.
That's it - lucky thirteen!'
Weightlessness, and silence, returned. On both ships,
there was a brief burst of cheering. It was quickly truncated.
for much was still to be done-and it had to be done swiftly.
Floyd was tempted to go to the airlock so that he could
give his congratulations to Chandra and Curnow as soon as
they came aboard. But he would only be in the way; the
airlock would be a very busy place as Max and Sasha pre-
pared for their possible EVA and the tubeway joining the
two ships was disconnected. He would wait in the lounge,
to greet the returning heroes.
And he could now relax even further-perhaps from eight
to seven, on a scale often. For the first time in weeks, he
could forget about the radio cut-off. It would never be
needed; Hal had performed impeccably. Even if he wished,
he could do nothing to affect the mission since Discovery's
last drop of propellant had been exhausted.
`All aboard,' announced Sasha. `Hatches sealed. I'm
going to fire the charges.'
There was not the faintest sound as the explosives were
detonated, which surprised Floyd; he had expected some
noise to be transmitted through- the straps, taut as steel
bands, that linked the ships together. But there was no
doubt that they had gone off as planned, for Leonov gave a
series of tiny shudders, as if someone was tapping on the
hull. A minute later, Vasili triggered the attitude jets for a
single brief burst.
`We're free!' he shouted. `Sasha, Max - you won't be
needed! Everyone get to your hammocks - ignition in one
hundred seconds!'
And now Jupiter was rolling away, and a strange new
shape appeared outside the window - the long, skeletal
frame of Discovery, navigation lights still shining as it drifted
away from them and into history. No time remained for
sentimental farewells; in less than a minute Leonov's drive
would start to operate.
Floyd had never heard it under full power and wanted to
protect his ears from the roaring scream that now filled the
universe. Leonov's designers had not wasted payload on
sound-insulation that would be needed for only a few hours
of a voyage that would last for years. And his weight
seemed enormous - yet it was barely a quarter of that which
he had known all his life.
Within minutes, Discovery had vanished astern, though
the flash of its warning beacon could be seen until it had
dropped below the horizon. Once again, Floyd told him-
self, I'm rounding Jupiter - this time gaining speed, not
losing it. He glanced across at Zenia, just visible in the
darkness with her nose pressed to the observation window.
Was she also recalling that last occasion, when they shared
the hammock together? There was no danger of incinera-
tion now; at least she would not be terrified of that particu-
lar fate. Anyway, she seemed a much more confident and
cheerful person, undoubtedly thanks to Max - and perhaps
Walter as well.
She must have become aware of his scrutiny, for she
turned and smiled, then gestured toward the unwinding
cloudscape below.
`Look!' she shouted in his ear, `Jupiter has a new moon,'
What is she trying to say? Floyd asked himself. Her
English still isn't very good, but she couldn't possibly have
made a mistake in a simple sentence like that. I'm sure I
heard her correctly - yet she's pointing downward, not up-
ward...
And then he realized that the scene immediately below
them had become much brighter; he could even see yellows
and greens that had been quite invisible before. Something
far more brilliant than Europa was shining on the Jovian
clouds.
Leonov itself, many times brighter than Jupiter's noonday
sun, had brought a false dawn to the world it was leaving
forever. A hundred-kilometre-long plume of incandescent
plasma was trailing behind the ship, as the exhaust from the
Sakharov Drive dissipated its remaining energies in the
vacuum of space.
Vasili was making an announcement, but the words were
completely unintelligible. Floyd glanced at his watch; yes,
that would be right about now. They had achieved Jupiter
escape velocity. The giant could never recapture them.
And then, thousands of kilometres ahead, a great bow of
brilliant light appeared in the sky - the first glimpse of the
real Jovian dawn, as full of promise as any rainbow on
Earth. Seconds later the Sun leaped up to greet them - the
glorious Sun, that would now grow brighter and closer
every day.
A few more minutes of steady acceleration, and Leonov
would be launched irrevocably an the long voyage home.
Floyd Felt an overwhelming sense of relief and relaxation.
The immutable laws of celestial mechanics would guide
him through the inner Solar System, past the tangled orbits
of the asteroids, past Mars - nothing could stop him from
reaching Earth.
In the euphoria of the moment, he had forgotten all about
the mysterious black stain, expanding across the face of
Jupiter.
--
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