Best Images from STS-133: Discovery's Final Mission in Pictures

As space shuttle Discovery prepares to return home from its final mission to space, let's take a look back at the STS-133 mission, an historic "last" for the program's most-traveled shuttle. "I think the legacy that this shuttle has made for herself is just nothing short than cause for celebration," said mission specialist Michael Barratt during press conference from orbit on March 8.

"It's going to be sad when it's over, when we land tomorrow or the next day," said STS-133 commander Steve Lindsey. "The hardest part of this for me is giving up the capability. It can do everything except leave low-Earth orbit...There is not a single thing wrong with her. Every single system and every piece of every system is working just like it's brand new."

The first spacewalk of the mission lasted six-hours and 34-minutes. Alvin Drew and Steve Bowen installed a power extension cable, move a failed ammonia pump module to the External Stowage Platform 2 on the Quest Airlock for return to Earth at a later date, installed a camera wedge on the right hand truss segment, installed extensions to the mobile transporter rail and exposed the Japanese "Message in a Bottle" experiment to space.

Joint crew photo inside the newest module, the PMM -- which is basically a big storage closet for the ISS. The STS-133 crew members, all attired in red shirts(from left)are NASA astronauts Alvin Drew, Eric Boe (below), Nicole Stott, Michael Barratt, Steve Bowen and Steve Lindsey (below). The dark blue-attired Expedition 26 crew members, from bottom left, are NASA astronaut Scott Kelly, European Space Agency astronaut Paolo Nespoli, NASA astronaut Cady Coleman along with Russian cosmonaut Oleg Skripochka. In the center of the photo are Dmitry Kondratyev and Alexander Y. Kaleri.

Larger versions of all these images can be found at NASA's Human Spaceflight website, under the STS-133 gallery.

Click here to see our gallery of launch images for Discovery's final flight.

Here's a video recap of the STS-133 mission:

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Nancy Atkinson

Nancy Atkinson

Nancy Atkinson is a space journalist and author with a passion for telling the stories of people involved in space exploration and astronomy. She is currently retired from daily writing, but worked at Universe Today for 20 years as a writer and editor. She also contributed articles to The Planetary Society, Ad Astra (National Space Society), New Scientist and many other online outlets.

Her 2019 book, "Eight Years to the Moon: The History of the Apollo Missions,” shares the untold stories of engineers and scientists who worked behind the scenes to make the Apollo program so successful, despite the daunting odds against it. Her first book “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos” (2016) tells the stories of 37 scientists and engineers that work on several current NASA robotic missions to explore the solar system and beyond.

Nancy is also a NASA/JPL Solar System Ambassador, and through this program, she has the opportunity to share her passion of space and astronomy with children and adults through presentations and programs. Nancy's personal website is nancyatkinson.com