Letters to Earth: Astronaut Don Pettit
- February 2012
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Here is the list of entries for Letters to Earth: Astronaut Don Pettit based on the selected criteria.
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Our Fancy Coffee Machine
Feb 29, 2012 01:35:04 PM | Don Pettit
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- Water is an essential ingredient not just for us, but for all life forms that we recognize.
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Earth Photography: It’s Harder Than It Looks
Feb 24, 2012 04:51:52 PM | Don Pettit
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- From my orbital perspective, I am sitting still and Earth is moving. I sit above the grandest of all globes spinning below my feet, and watch the world speed by at an amazing eight kilometers per second (288 miles per minute, or 17,300 miles per hour).
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Jelly on Both Sides
Feb 17, 2012 04:08:42 PM | Don Pettit
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- When your slice of bread falls on the floor, everyone anxiously looks to see if it landed jelly side up or jelly side down. Simple probability gives a 50-50 chance either way, but it seems more correlated to the difficulty of cleaning that particular section of flooring.
On space station the probabilities are still the same, but the results are different.
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Leonardo’s Closet
Feb 23, 2012 11:45:18 AM | Don Pettit
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- On space station, we have a closet module. Its prosaic name is PMM. In a former life, it was an MPLM, a special transport container that flew up and down to space station in the back of the Space Shuttle. Made in Italy for NASA, the PMM was formally christened Leonardo—obviously named after a Teenage Mutant Ninja Turtle.
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A Lab for Science, and for Thinking
Feb 02, 2012 11:12:11 AM | Don Pettit
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- The International Space Station was conceived and constructed through the cooperation of fifteen nations. Now, with it's construction complete, we can focus on how best to use it.
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The Expanding Universe of Trash
Feb 01, 2012 06:51:31 PM | Don Pettit
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- It is not surprising that the humble garbage can, essential for Earth-borne civilization, is likewise essential for space station.
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Flying without Wings
Feb 01, 2012 03:44:05 PM | Don Pettit
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- During interviews from space station with school children I am often asked what on Earth I miss the most.
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Absence of g
Feb 01, 2012 03:36:51 PM | Don Pettit
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- A poem by Expedition 30 Flight Engineer Don Pettit.
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