station unseal,â Shale said.
âRoger. Armstrong, Midnight ready for station-side unseal,â Boomer said. He pointed at the instrument panelâs multifunction display, which showed air pressure in the spaceplane, on the stationâs docking module, and now inside the transfer tunnel linking the two. The tunnel pressure read zero . . . and just then, the pressure inside the tunnel slowly began to rise. It took almost ten minutes for the tunnel to fully pressurize. Everyone watched for any sign of the pressure dropping, indicating a leak, but it held steady.
âPressureâs holding, Boomer,â Shale reported.
âI concur,â Boomer said. âEveryone ready to equalize?â
âIâm good, Boomer,â Gonzo replied. âThe second passenger is too.â
âClear to open her up, Gonzo.â
They felt a slight pressure in their ears as the spaceplaneâs higher cabin pressure equalized with the stationâs slightly lower pressure, but it wasnât painful and lasted just an instant. A moment later: âTransfer hatches open, second passenger on his way through.â
âCopy that, Gonzo,â Boomer said. He started to unstrap from his seat. âIâll unstrap first, sir,â he told his passenger, âand then Iâll get into the airlock while you unstrap, and Iâll steer you out and up.â The passenger nodded but said nothing; Boomer noticed a rather distant expression on the first passengerâs face and wondered what he was thinking about so hard. The hard stuff was doneâall he had to do now was float around the big station, look around, and be a space tourist until it was time to go home.
But after Boomer unfastened his lap and shoulder restraints and was about to float out of his seat, the passenger held his arm. âI want to do it, Boomer,â he said.
âDo what, sir?â
The passenger looked at Boomer, then motioned out the right side of the cockpit with a nod of his head. âOut. That way.â
The passenger could see Boomerâs eyes flash through his helmet in disbelief, even alarm, but soon a pleased smile spread across his face. âYou really want to do it, sir?â he asked incredulously.
âBoomer, Iâm doing several incredibly amazing things today,â the passenger said, âbut I know that Iâll be mad at myself if I return to Earth having passed it up. Weâve done enough of that oxygen prebreathing, havenât we? Thereâs no danger of getting the âbends,â is there?â
âSir, a case of decompression sickness might be the least hazardous aspect of a spacewalk,â Boomer said, his mind racing through the checklist in his head to see what might prohibit this. âBut to answer your question: yes, weâve been prebreathing pure oxygen for over four hours, so we should be good.â He clicked open the ship-to-station intercom. âGeneral Raydon? He wants to do it. Right now. Out the cockpit and through the stationâs airlock, not the tunnel.â
âStand by, Boomer,â replied a different voice.
âThatâs the second guy on station that seems exasperated talking with you, Boomer,â the passenger observed once again with a smile.
âBelieve it or not, sir, we talked about this too,â Boomer said. âWe truly wanted you to have the full experience. Thatâs why we put you in a full ACES advanced crew escape system space suit instead of a more comfortable partial-pressure suitâitâs rated for short EVAs, or extra-vehicular activities. You sure your folks back at home base will like what youâre about to do?â
âThey may not like it at all, Boomer,â the passenger said, âbut theyâre down there, and Iâm up here. Letâs do it.â As if signaling concurrence, a moment later a mechanical arm extended from a hatch on another side of the docking module,
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