Jeffrey Nels Williams (born January 18, 1958) is a retired United States Army officer and a NASA astronaut.

He earned a degree in applied science and engineering from the U.S. Military Academy in 1980, receiving his commission in the United States Army.

STS-101 delivered supplies to the International Space Station, hauled up using a Spacehab double module and an Integrated Cargo Carrier pallet.

During Expedition 13, he worked on hundreds of experiments, walked in space twice, and captured more photographs of the Earth than any other astronaut in history.

On August 24, 2006, a taped message made by him to be played at an official NASA press conference was accidentally played over the air-to-ground loop,[7] the tape revealing that the Crew Exploration Vehicle under development to replace the Space Shuttle after 2010 would be named Orion after the famed wintertime constellation.

[9] Williams with Expedition 22 Flight Engineer Maksim Surayev landed their Soyuz TMA-16 spacecraft on the steppes of Kazakhstan on March 18, 2010, wrapping up a 167-day stay aboard the Space Station.

The book reflects in Williams words the "vivid lessons about the meticulous goodness of divine providence, God's care for His creation, and His wisdom in ordering the universe".