The first crew arrived at the International Space Station onboard a Soyuz spacecraft.
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Scientists discovered the most distant supermassive black hole.
Three astronauts, Richard J. Hieb, Thomas D. Akers, and Pierre J. Thuot, simultaneously walked in space for the first time.
The crew aboard the International Space Station celebrated Thanksgiving.
The super-bright comet 'Hale-Bopp' reached its closest point to Earth at a distance of 1.215 AU, making it visible to the naked eye.
NASA revealed that water vapor was discovered in the atmosphere of an Earth-size planet, the exoplanet K2-18b.
