At the top of this post is a drawing, done with deliberate crudeness. I wish I could have used the original, but it existed before digital cameras and Pinterest. I have searched the internet without success for the image I remember. There are dozens of modern Skylab T-shirts. but none like what you see here.

In 1979, Skylab came crashing back to Earth. NASA knew it was going to happen, but could not prevent the event; it even predicted the date, July 11. The world partied in the face of danger – especially since the chances of being at ground zero were billions to one – and I Survived Skylab T-shirts were worn everywhere. The one I remember had a silly looking cartoon schmuck holding an umbrella over his head while Skylab was flashing down behind him.

If anyone still has a picture of one of those original T-shirts, post it on Pinterest and I’ll provide a link.

No one had intended Skylab to come to such an end. It was in reasonably high orbit, about 275 miles when he last crew came back to Earth. It still contained plenty of air and water, although the gyros were failing. It could have been remanned, and there were tentative plans to shift it to to a still higher orbit. No one took it too seriously, though; the vessel was old and battered, and NASA had turned its attention to the Space Shuttle.

In fact, most people at NASA thought the next Skylab crew would be ferried up by the Space Shuttle.

Nature had other plans.

By 1973, it was predicted that Skylab would deorbit years earlier than NASA was predicting, but NASA failed to listen. Increased solar activity had heated the atmosphere, causing it to expand. Low Earth orbits are still within the tenuous ranges of the outer atmosphere. Although the life of such orbits is measured in years, all things within a few hundred kilometers of Earth eventually come down. Now NASA was facing the fact that the Space Shuttle would not fly before Skylab’s orbit became critical. Not only could Skylab not be saved, it could no longer be equipped for a controlled deorbit.

A Russian Cosmos had crashed into northern Canada only a year before. The second stage of the Saturn which had launched Skylab had remained in orbit two years, then crashed into the North Atlantic in 1975. NASA was aware that the potential for disaster was great. It was predicted that up to 25 tons of debris might survive reentry, and there was no way to determine where it might land.

If Skylab had landed on Omaha – or Paris – we would be living in a very different world, with a very different attitude toward space exploration. In point of fact, Skylab struck the Earth in the desert of western Australia. No one was injured. Property damage was minimal.

The Shire of Esperance sent NASA a fine for littering.

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Everybody has to carve out his own niche. In my science fiction, I concentrate on the next couple of centuries. In these posts I concentrate on the early space program. I have not yet written about the space shuttle, which always seemed to be like Grandpa’s pickup truck that he bought after he was no longer young and had sold his hot rod. Sorry, my prejudice, which I am sure I will someday reverse without apology.

I am even less interested in the ISS. I remember too well that, during its planning – before the feds told them to shut-their-mouths and not bite the hand that was feeding them – the scientific community complained loudly about all the research that would go unfunded to feed the ISS.

The ISS, symbol of American-Russian friendship, boldly going where everyone has already gone before. Sorry, my prejudice again.

If you are interested in the ISS, there is a plethora of available writing. If you want to know more about early space stations, try to find Living in Space by Giovanni Capara in your local library. Published in 1998, it is a detailed study of all the space stations before ISS.

Two days after Armstrong and Aldrin stepped onto the moon, NASA announced that it would launch an orbital laboratory with space telescope, using a Saturn V rocket. Because of its great power, the Saturn V could place a large payload in low earth orbit, using only its first and second stages. The entire third stage was converted into the orbiting laboratory, and launched intact and ready for occupation. This was Skylab.

The astronauts who would man Skylab would arrive later in CSMs – NASA speak for Command Module and Service Module, considered as a package deal – launched on smaller Saturn I-B rockets.

This cylindrical third stage was divided by a floor grating into an upper work area and lower living quarters,with eating, sleeping, and bathroom areas. It was, of course, a weightless environment. At the end of the vehicle, an airlock and docking adapter allowed egress for extravehicular activities and connected Skylab to the CSM which brought the astronauts up, and remained docked to return them to Earth. A solar panel array provided power. In pictures of Skylab, this array is what looks like helicopter blades above the vehicle. The telescope mount is in the center of the solar power array.

Skylab was launched on May 14, 1973, with disastrous results. The meteorite shield, which was supposed to stay snugly against the outside of Skylab during the flight up, and deploy once in space, deployed prematurely. Once in orbit, only part of the solar panel array deployed. The rest had been trapped by the damaged meteorite shield. The result was too much heat and not enough power. Skylab was uninhabitable.

The astronaut launch was temporarily cancelled and NASA went into salvage mode. Within eleven days they had proposed, built, and tested a set of repairs, and the crew of Conrad, Kerwin, and Weitz launched on May 25th. It proved to be no easy task.

The first day, working from the hatch of the CSM, Weitz tried using a forked stick to remove some of the debris remaining from the meteorite shield in order to deploy the solar array. No luck. Then the astronauts tried to dock, only to find that part of their capsule was non-functional. They had to externally repair their docking probe before connecting with Skylab and finally getting to sleep, no closer to repair. The next day, they attacked repairs from inside Skylab. Weitz wore a gas mask as he tested the air inside the structure. Scientists had feared that the high temperature environment would release poisonous gasses from the insulation. It had not, but the temperature inside was 130 degrees. The astronauts then set up a parasol they had brought, inside the second airlock near the telescope, and slowly extended it outside Skylab. It opened successfully, providing relief from the sun. The temperature dropped, although only to 95 degrees. The second night, the astronauts slept in the docking adapter area where the temperature was reasonable.

Several days later, Conrad and Kerwin performed another EVA, used large scissors to cut away part of the meteorites shield, and finally freed the remaining solar array.

The work of the first Skylab crew not only saved the station for the work it was designed to do, but also proved the necessity of manned missions to rescue projects in danger. Twenty years later, when the Hubble needed repair to perform its functions, the precedent had long since been established.

The first Skylab crew stayed aboard a month, conducting astronomy and medical research. The second crew, Bean, Lousma, and Garriott, remained aboard for two months, continuing repairs and research.. The third crew, Carr, Pogue, and Gibson, remained in space 84 days, observed and photographed comet Kohoutek and continued other experiments.

By the time the third crew returned to Earth, Skylab was nearing the end of its service life. Beyond the damage done on launch day, many other systems were failing. There were plans to use it further, but nature had plans of her own. conclusion tomorrow