https://pt.wrighthome.me/videos/watch/2bf71330-a1b3-4fcd-9c76-f6500b4b14f2 The Mars Climate Orbiter was launched toward the red planet in December 1998. After almost a year long journey it reached its destination. Then on September 23, 1999, communication with the spacecraft was lost. But why? Could it have been a simple measuring mistake? Subscribe and turn on notifications 🔔 so you don't miss any videos: https://s.si.edu/3rnWsfq This “clip” is part of the STEM in 30 episode: Measurement in Real Life: https://youtu.be/zmcLUV0vK90 For more information about how to use this resource in your classroom please visit our Teacher Tips page that includes standards, classroom activities, and additional resources. Teacher Tips: https://s.si.edu/MeasurementTeacherTips STEM in 30 is a free educational series for kids produced by the Smithsonian's National Air and Space Museum. We cover all the cool, fun, and weird ways that aviation and spaceflight touch our lives. Check out more episodes: https://airandspace.si.edu/stem-30 Follow STEM in 30 on Facebook: https://www.facebook.com/STEMin30 Follow STEM in 30 on Twitter: https://www.twitter.com/STEMin30 This episode is made possible by the generous support of Amazon, Boeing and Hexcel #Smithsonian #NationalAirandSpace Museum #STEM #STEMin30 #STEAM #Teacher #Resources #LessonPlans #LessonPlan #Teachers #airandspace #Measurement #metricsystem #marsexploration #marsmissions #mars #MarsClimateOrbiter #mistakes #mistakeshappen Tue, 29 Sep 2026 11:53:42 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://pt.wrighthome.me https://pt.wrighthome.me/client/assets/images/icons/icon-1500x1500.png https://pt.wrighthome.me/videos/watch/2bf71330-a1b3-4fcd-9c76-f6500b4b14f2 All rights reserved, unless otherwise specified in the terms specified at https://pt.wrighthome.me/about and potential licenses granted by each content's rightholder.