The heavy price of orbital construction is a five-hour nap

Space · Published 20 October 2026 Swipe more like this →

In short: Space exploration isn't just about high-octane maneuvers; it’s an endurance test of physical and mental stamina. After a grueling week of hauling massive cargo and performing spacewalks, the crew of the space shuttle Atlantis earned a rare, quiet window of rest in the vacuum of orbit.

During mission STS-115, the six-astronaut crew of the space shuttle Atlantis faced an intense operational schedule. Their primary objective was the delivery and installation of new solar arrays and the $372 million Port 3/Port 4 truss segments to the International Space Station (ISS). This type of orbital construction requires high levels of concentration and physical exertion, necessitating periods of downtime to prevent fatigue.

On Flight Day 8 of their mission, which began on September 9, the crew was granted a brief respite. While some members were winding down, others remained on duty; for instance, Heidemarie Stefanyshyn-Piper was responsible for ensuring all vital cargo reached its correct destination. The break provided a necessary transition before the final phase of the mission, which included speaking with reporters on Earth and preparing for undocking.

The human element of spaceflight is often highlighted by these small moments of normalcy. To rouse mission specialist Daniel Burbank from his sleep at 1:15 a.m. EDT, mission controllers played Jimmy Buffet's "Twelve Volt Man," a song selected by his wife and children. This underscores the psychological importance of personal connection and familiar comforts in maintaining morale during the isolation of long-duration space travel.

The shuttle Atlantis served as a workhorse for these complex maneuvers, eventually completing 121 flights in total. These missions were critical for expanding the ISS's capabilities, moving millions of miles to deliver laboratories like the European Space Agency’s Columbus Laboratory and transporting personnel between Earth and the orbital complex.

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