The Day Columbia's Crew Shared Their Vision of Peace
Twenty-two years ago, the crew of Space Shuttle Columbia awakened to John Lennon's 'Imagine' and shared a profound message about unity and peace that would become part of their enduring legacy
today in space history
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The Day That Changed Spaceflight Forever
Thirty-nine years ago, the loss of Space Shuttle Challenger and its seven crew members forever transformed our approach to spaceflight safety and risk management
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The Day We Lost Apollo 1
Fifty-eight years ago, a tragic fire during a routine test transformed spacecraft design and created the foundation of modern spaceflight safety culture
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The Day Humanity Gained New Eyes on the Universe
Forty-seven years ago, a revolutionary space telescope changed our view of the cosmos, pioneering international cooperation in space-based astronomy
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The Day Opportunity Changed Our View of Mars Forever
Twenty-one years ago, a golf cart-sized rover bounced to a stop inside a small crater on Mars, beginning one of the most remarkable chapters in space exploration history