The reason we have the stars twinkle at night is because the light is being kind of blurred by the atmosphere around the Earth. That is why the Hubble Space Telescope is so good, because it is above the atmosphere. So it is kind of like looking at the sun from the bottom of a swimming pool, versus looking at the sun above the swimming pool.
From Michael J. Massimino
I had always been interested in the space program, and I didn't know if I could be an astronaut like I'd dreamt about when I was a little kid - to me it sounded kind of silly, someone grow up to be an astronaut - but, when I was in my 20s, I thought maybe I can get a job with NASA or a contractor, do something with the space program.
From Michael J. Massimino
Being outside during the space walk, the view of the Earth is just spectacular, and getting a chance to do that is just unbelievable, everything about it. You are going around the Earth at 17,500 miles an hour, so you have 45 minutes of sunlight followed by 45 minutes of darkness. You do a lap every 90 minutes.
From Michael J. Massimino
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