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TRAPPIST planets may be habitable in weirder ways than we thought
The planets are tidally locked, meaning one side always faces the star while the other never sees the light of day
Mark your calendars: 2019 spaceflight events you don’t want to miss (photos)
Among other things is the 50th anniversary of the Apollo 11 mission that put humans on the moon for the first time
NASA plan for a “cloud city” made of airships floating over Venus (photos)
Somebody in NASA is big fun of "Star Wars: The Empire Strikes Back"...