Christina Hammock Koch @astro_christina

NASA Astronaut currently living onboard the @iss.

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Christina Hammock Koch photos and videos

9 hours ago

Our gateway to space, from space. The next people looking up from their rockets at Cape Canaveral will be aiming toward us. The people after them will be aiming for something even farther: the Moon. #Artemis #Moon2024

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Yesterday

Working out on @iss may be part of our job as astronauts, but just like on Earth, it’s a great way to stay healthy, be at the top of your game, feel great, and spend time with friends. I’m going to miss my weekend #WOD 's with Anne McClain! #fitness

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2 days ago

Good morning, #DC , #Baltimore , #Philly , and #Newark !

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5 days ago

Space Station Friday night! The crew gathers to watch space science history in the making as a team investigating novel fiber optic production starts a run. Researchers believe there could be a 10x gain in throughput for this type of fiber optic when produced in microgravity. Tapping the commercial potential of the @iss to benefit life on Earth!

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6 days ago

Testing technologies for autonomous spacecraft refueling in microgravity on the @iss ! Not a simple problem when the fluid doesn’t rest nicely at the bottom of the tank and when vehicles rotate and move around for rendezvous.

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6 days ago

#Tbt to the @wsl final day of competition in #Bali From @iss , I could see the two different swell directions and periods wrapping and mixing as they became the barrels of Keramas. Buoy forecasts visualized. #SwellFromSpace

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2 weeks ago

Years ago at the South Pole, I looked up to the aurora for inspiration through the 6-month winter night. Now I know they’re just as awe inspiring from above. #nofilter

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2 weeks ago

Islands off the coast of West Africa, like wing tips cutting through the air, form giant swirling Von Karman vortices showing up in the clouds above.

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3 weeks ago

Caught a shot of #dragon being maneuvered by the #canadarm2 from its docking port to the position where it got released earlier today. Can you guess what continent we were flying over?

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3 weeks ago

Venus rise at sunrise, from the @iss

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3 weeks ago

Another cool #science first aboard the @iss : we used #CRISPR /Cas9 to edit #DNA in space! We're conducting research to learn how cells repair damaged DNA in microgravity, which could help develop safeguards for future space exploration.

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4 weeks ago

We utilize the @iss for all kinds of different operations, and the close quarters means that science can happen right next to exercise!

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4 weeks ago

‪This #MemorialDay , remembering Lieutenant Commander Roger Chaffee, #Apollo 1 crewmember who made the ultimate sacrifice for the advancement of human space exploration. A spaceship named in his honor is docked at the @iss today and is a symbol of his legacy and all that he and people like him have made possible.‬ #RememberTheFallen

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4 weeks ago

In a few moments, what’s in my hands will be in the vacuum of space. Working with Anne McClain prepping the platform of the facility airlock on @iss that allows us to move equipment and experiments between the inside and outside. Then, a robotic arm takes over and can install them almost anywhere on station.

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4 weeks ago

Three’s company! Did you know that microgravity causes changes in immune systems? Today three of us got to work in tandem, using the @iss as a test bed to study these changes, with the goal to improve vaccines and therapies for treating diseases and cancers on Earth.

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4 weeks ago

Incredible ocean dynamics from the @iss around the island of #Bali Looking forward to it filling in at Keramas for the @wsl championship tour final rounds. #SwellFromSpace

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5 weeks ago

Needing big G’s in micro-G. Loading up the centrifuge to prep samples for deep freeze and later return to Earth for analysis. The @iss is a laboratory packed with facilities and equipment for the 200+ experiments happening every expedition!

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5 weeks ago

A couple times a year, the @iss orbit happens to align over the day/night shadow line on Earth. We are continuously in sunlight, never passing into Earth’s shadow from the Sun, and the Earth below us is always in dawn or dusk. Beautiful time to cloud watch. #nofilter

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5 weeks ago

Lined up, even from the @iss Watching the sets wrap in over Raglan Bay, New Zealand. #SwellFromSpace

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last month

Like a line in the sand, the magnificent Front Range as it meets Boulder and Denver.

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last month

Like a line in the sand, the magnificent Front Range as it meets Boulder and Denver.

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last month

Alexey, @astrohague and I recently conducted a 6-person routine emergency drill inside the Rassvet module where our Soyuz is docked. As astronauts, we must always be prepared in the case of unexpected contingencies!

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last month

The @iss orbital inclination gives us a straight shot connecting Bali and the beaches of Australia. Beautiful view of the competition sites as the @wsl championship tour bounces back and forth between the two. #swellfromspace

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last month

Incredible tissue-on-a-chip research is happening onboard the @iss ! Why? Microgravity induces tissue changes that are also seen in progressive diseases on Earth, but here, these changes can happen over the course of weeks rather than years. Accelerating human health research in space to get disease prevention and treatment sooner on Earth!

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last month

“Trust the Process.” Well said, @joelembiid Good advice in athleticism & in long duration spaceflight. Great to meet the team & tour the @iss training mockups at @nasajohnson back in 2016, & great watching your successes from station. Let’s go @sixers ! #HereTheyCome

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last month

Dual glovebox ops, not wasting a single surface of usable space for science! In one, we are discovering how microbes adapt to microgravity and in the other, how the immune system responds to spaceflight. Bringing new understanding down to Earth for application in pathogen defense, vaccines, and cancer treatments.

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last month

Let the cargo ops begin! When new vehicles carrying tons of research equipment, provisions and hardware arrive at the @iss , we get to work stowing all the new gear. For every high-tech laboratory facility, there’s a storage area of equipment and supplies to support it. Constant turnover with upgrades and the latest state of the art science!

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last month

Room for 6? No problem. From left to right: Progress, Soyuz, Cygnus, and Dragon, plus another Soyuz and Progress out of view! But is this truly a full house on @iss ? Nope. The @nasa Commercial Crew Program recently commissioned a new parking spot: the forward-facing docking port, for a total of 7! Stay tuned for more action there.

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last month

Capture complete! Great teamwork from @astrodavids and @astrohague who captured the @spacex #Dragon this morning using Station’s robotic arm Canadarm2. Ready to unpack all of the awesome science, hardware and supplies onboard!

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last month

‪Waving to the mitten! Greetings to my friends and family in Michigan. The Great Lakes are as stunning from space as they are in person.‬

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last month

Clouds stole the view east of Adelaide to the @wsl at Bells, but I bet you could have seen the waves themselves from the @iss ! Way to crush the ‘50 Year Storm,’ @courtneyconlogue ! “The ocean lets us know just how small we really are.”--Just what I was thinking from up here, Bodhi. #swellfromspace

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last month

One of the last frontiers I can’t wait to explore one day, Alaska’s unmistakable Aleutian Islands.

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last month

It took my breath away as it came into focus. My first glimpse of coastal North Carolina from space. It’s a special thing to see from above the place where you grew up--the ocean that first inspired my fascination with things that make me feel small, and first planted the seeds of a goal to explore. #EarthDay #EarthDay2019

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April 2019

‪The solar arrays do their work during our daylight, but they seem to be most beautiful at sunset. Tomorrow a new pair of solar arrays will join the mix on the #CygnusNG11 cargo vehicle when it berths to @iss !

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April 2019

Taking @iss ’s robotic arm for a spin! Tomorrow, Anne McClain will capture the #Cygnus cargo vehicle using the #CanadaArm2 as Cygnus holds position just 30 ft from station. We all got a turn practicing on the real robotic arm for the first time to prep for the big arrival!

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April 2019

One month down. Ten to go. Today the possibility has become reality: My mission is planned to be extended through a third Expedition onboard @iss ! Privileged to contribute my best every single day of it.

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April 2019

Moonrise over the atmosphere.

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