The 100-ton Skylab was almost the size of a small house. The interior of the station measured 11334 feet in volume (Yenne,170). The dimensions of the station were 21.6feet at its widest point, and 48.1feet long.

The Skylab consisted of four units. Three of these units sustained life. The orbital workshop (OWS) contained crew quarters and work areas. The OWS was divided into two stories. The upper story had food storage and space suits. The lower story contained crew quarters and places for experiments. The airlock module (AM) contained the station\'s control and monitoring center. The AM also allowed access to the outside of the station. The Apollo Telescope Mount (ATM) a solar observatory. The multiple docking adapter (MDA) contained docking ports for the Apollo spacecraft. When docked, the Apollo

On November 16,1973 Skylab 4 was launched. As soon as they arrived the refrigeration system began to leak. They decided to use the back-up system this too began to leak, but it would not fail for weeks. More problems arose and an antenna began to function incorrectly. After a six and a half hour space walk the antenna was repaired. One of the station\'s gyros began to overheat. It was shut down, this left the station with only two gyros. The crew did experiments designed by high school students. Experiments involving the amount of neutrons in the station, another experiment involved searching for a small undiscovered planet called Vulcan. The planet is so close to the Sun it can\'t be seen. There was no evidence of this planet. Other experiments included welding in space, combining metals, and growing crystals.

The Skylab 3 crew broke the record made by the Skylab 2 crew. They stayed in orbit for 59 days 11 hours 9 minutes. They also made the longest spacewalk, of 3 hours 23 minutes.

The crew of Skylab 2 included Charles Conrad, Joseph Kerwin, and Paul J. Weitz. The Skylab 2 mission was launched on May 15,1973. This mission\'s objectives included repairing the space station. This task included installing a replacement meteorite shield, and deploying the solar array. The temperature of the station during the day was, on average, 100 degrees. During the night it was approximately 80 degrees.

module acted as part of the station.

Skylab 1 was launched on May 14,1973. Using a modified SATURN V rocket the station was sent into orbit (Cromie, 13). Skylab was set at an orbit of 270 miles (Cromie, 13). During the launch the meteorite shield was torn off. This shield not only protected against meteorites, it was coated with a special paint to resist heat. It acted as a shield from the Sun\'s heat. Also during the launch one of the Skylab\'s solar arrays was damaged. This would prove problems for the Sky

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