Joe’s finger was already straightening against the button.
The figures came to a confused halt and stood gaping up at the tail and booster nozzles of the spacecraft towering above them. Then, realizing their mistake, they began a frantic scramble to get back through the door.
“Ignition.”
53
Keene counted seventeen gut-wrenching hits or lightning strikes on the structure as the ship climbed through the winds, the flaming clouds, and the meteorite storm. But it stayed together, and as it emerged from the atmosphere the occupants got their first view of Athena since the last transmissions before the satellites were knocked out, and the shots that had been relayed from the Osiris. The nucleus was clearly visible now, appearing six times the size of the Moon, which meant that it was well inside the lunar orbit. It hung as a malevolent, white-hot presence, its tail of dust and incandescent gas engulfing and extending far beyond the Earth, with twisted and braided secondary streamers discharging immense sparks through the plasma envelope to the main body and between each other.
The regular flight-planning programs were unable to compute a stable orbit through the changing gravity now permeating the region. Charlie Hu, Joe, and Keene calculated a burn that would send them coasting out on a long ellipse away from the two bodies as they closed. Although it meant expending an alarming portion of the remaining fuel, their estimates indicated that it would be better in the long run than constantly having to fire to correct a closer-in orbit. And with the ship’s vantage point lengthening, its occupants watched the devastation of an entire planet as the encounter between Earth and Athena entered its final, cataclysmic phase.
The seas of fire that they could see engulfing parts of the southwestern and central U.S. were repeated across huge tracts of every other continent also. From the size and sharpness of the spiral chasms carved in the smoke-laden atmosphere, they were generating winds more ferocious than anything seen previously. Watching in horrified yet compulsive fascination, they were able to glimpse through the slowly shifting patterns fragments of what was happening on the surface.
The tides filled the valleys of the Amazon, Mississippi, Congo, Ganges, and Yellow Rivers, rising over the southeastern states all the way to the Appalachians in the U.S., covering the plains of southern India and Argentina, and creating temporary seas that immersed London and Paris, Baghdad, Beijing, and Montreal. When the water receded, a mud bank running from Florida to Venezuela turned the Caribbean into a six-hour lake; Britain reemerged amid a plain of lakes extending from Norway to Spain; Asia became reconnected to Australia except for a narrow channel twisting its way between Borneo and Celebes.
As the magnetospheres of Earth and Athena intersected, colossal electrical bolts began flashing incessantly not just between parts of Athena but directly down upon Earth itself. After two days, Charlie, who had been trying to make measurements from the ship’s imaging displays, announced that the tidal extremes were getting less even though Athena was still closing. It confirmed the fears that Keene had heard voiced back at JPL: The motion through Athena’s field was making Earth an immense Faraday generator, heating the beds of the oceans and actually inducing boiling in places, causing sea levels to fall by hundreds of feet. The recondensing vapor turned into a pall of cloud miles thick, which the winds stirred with the browns of the hydrocarbon gases and the smoke from the continent-wide fires to draw a curtain over the death throes as Earth and Athena commenced the slow mutual gyration that would mark their closest pass. But the broad story told by the shuttle’s infrared scans left no need for every ghastly detail.
Under the close gravitational influence, the crust seemed to slip in its rotation. Softened and melted toward the surface by the induced heating, it buckled and tore into huge north-south running paroxysms of earthquake and upheaval. The great African Rift opened up into a two-thousand-mile-long lake of lava that could be seen widening hour by hour, soon to become a new ocean, while to the east the tip of India extended into a ridge of upthrusting, colliding slabs of seabed snaking its way southward across the equator. The trench system running from Japan via the Phillippines to Indonesia was opening too, and starting to cleave Australia—very possibly, Charlie guessed, presaging a continental uplift somewhere in the western Pacific. They were literally watching the next world being born, even as the old one died.