NASA's space shuttle Challenger exploded 40 years ago today, killing its 7-person crew. Photos reveal Challenger's legacy.

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The Challenger explosion.
28th January 1986: An abstract smoke pattern after the space shuttle Challenger explosion, Kennedy Space Center, Florida.

Dave Welcher/Hulton Archive/Getty Images

Fierce competition for Europe's next-generation tanks shapes up

Tech Insider
Multiple European arms makers are designing next-generation tanks like KNDS' Leclerc Evolution seen at a 2024 defense expo in Paris.
Multiple European arms makers are designing next-generation tanks like KNDS' Leclerc Evolution, seen at a 2024 defense expo in Paris.

Artur Widak/Getty Images

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