On Dec. 6, 1998, astronauts on the space shuttle Endeavourofficially began the construction of the International Space Station. See how it happened in our On This Day In Space video series.
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- On This Day in Space! ISS Astronauts Toss ‘SuitSat’ Overboard
- See the Whirlpool Galaxy Through the Eyes of the NASA’s ‘Great Observatories’
- This Is the Purest Beam of Light in the World
- Hyperfast Shock Waves from a Supernova Heat Atoms to Blazing-Hot Temperatures