NASA Astronaut; STS-127, Exp 34/35, SpaceX Crew 3/Exp 66

Joined October 2011
As an astronaut, I get to do some pretty cool things. Bedtime stories from the @Space_Station are one of them! A video of me reading Goodnight Moon will air during a 75th anniversary celebration of the book today at 7pm ET: fb.me/e/1DAL1SzFr
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So happy to greet our friends of Crew-4, who recently arrived after a spectacular launch and orbital trip in their Crew Dragon.
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Before Crew-4 had arrived at @Space_Station, I camped out in the EVA airlock with my blue sleeping bag on the ceiling!
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Happy #EarthDay! Sunrises from the @Space_Station are always magical, where Earth looks even more beautiful and precious.
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Yesterday there was a spacewalk just outside our window! Crewmates Oleg and Denis continue to add improvements to their MLM module as the sun sets behind them.
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Carrying SoFIE (Solid Fuel Ignition and Extinction) for installation in the Lab. SoFIE is a remarkable facility to study flame spread and solid material properties in 0-g, important for improving fire safety both in spacecraft and on Earth.
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The Cupola on the @Space_Station provides the broadest view of Earth ever provided from a spacecraft. A chance to spend some time there is a rare and precious opportunity.
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How do humans perceive up and down? And can we create our own up and down in space? We tried that by “rock-climbing” across a couple of modules one evening.
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Mali’s triangular Lake Faguibine and the Niger River Basin always catches our eye from space. Resembling a surrealist work of art, it is also a stark symbol of the continued drying of the region.
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Air bubbles in a spaceship’s water supply can clog up the system. This method of removing them turned out to be quite fun!
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Monterrey Mexico, nestled at the base of the Parque Nacional Cumbres de Monterrey. One can see why it attracts rock climbers from all over the world.
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The Mississippi’s southern terminus - seen yesterday from snow line to delta.
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Canada’s Dextre gave us a friendly good morning wave just outside our window this past Friday, passing by as it continues to maintain and inspect the outside of our home.
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Thomas H. Marshburn retweeted
Jump into a moment aboard the @Space_Station! This past Tuesday @AstroMarshburn gave us a glimpse into the science around every corner.
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Human-made structures that are visible from space: the Osmangazi Bridge spanning the Gulf of Izmit in Turkey is just barely perceptible with the unaided eye from orbit.
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Was surprised to see our new neighbor, the STP-H8 antenna, glittering and spinning just outside our window. Using microwave sensors, this antenna collects data from the air-sea interface to improve weather prediction
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A window in the newly added Russian module offers this view of the @Space_Station. That’s me in the Cupola, taking in the sights of our spectacular planet.
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Sun glint often highlights the beauty of ocean waves, eddies, and currents. Off the Eastern Coast of Argentina.
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The beautiful cities of Santiago and Rancagua rest against the Andes, with Aconcagua, the highest mountain in the Western and Southern hemispheres and a favorite of climbers from around the world, in the upper left of this view.
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.@astro_matthias and I working on an experiment on @Space_Station. 0-g offers up some unique opportunities for how we can work together!
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