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Danh ngôn của John M. Grunsfeld (Sứ mệnh: 4)

All space exploration is risky. As an astronaut, I had to decide each and every time I went to space whether or not to risk my life for the mission.
Hubble isn't just a satellite; it's about humanity's quest for knowledge.
Sometimes astronauts feel a little ill or get minor scrapes. I trained as a crew medical officer to do basic treatment.
The James Webb Space Telescope was specifically designed to see the first stars and galaxies that were formed in the universe.
There is no stronger case for the motivational power of real science than the discoveries that come from the Hubble Space Telescope as it unravels the mysteries of the universe.