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COL Anne McClain

@AstroAnnimal • 132,547 subscribers

Astronaut, Army Helicopter Test Pilot. Commander, Crew-10. FE, Soyuz MS-11. International Space Station Exp. 58-59, 72-73. IG @astro_annimal

Shorts

How do we take group photos in space? We cannot ask a passerby for help, so we set up a camera to take a photo every 5 seconds, get in position, then stop to smile at the camera. Looks a little chaotic, but it works!

How do we take group photos in space? We cannot ask a passerby for help, so we set up a camera to take a photo every 5 seconds, get in position, then stop to smile at the camera. Looks a little chaotic, but it works!

111,500 просмотров

From International Space Station, we have a unique vantage point to observe lightning storms from directly above them. Much like from the ground, they appear as rapid, intense flashes that are over as quickly as they started. But, with the help of handheld cameras and a bit of practice (and, admittedly, some luck), we can capture these intense flashes with a very high frame rate then slow them down to see how the lightning propagates. It's lightning, in slow motion. This is one that occurred over Indonesia on 6/28. I shot it for a half second at 1/120 frame rate, so, 60 separate frames. I then compiled those frames into two videos: the first, in real-time, and the second, slowed down so that each frame is a half second to highlight the progression of the flash. Note the incredible burst of light in one frame, which includes what is likely a TLE on the upper left. A TLE, or Transient Luminous Event, is an electrical discharge that happens in the upper atmosphere above lightning storms (if you haven’t seen Ferry Farhan TLE photo from last week, head over to her page). As their name implies, these are transient, or short lived, phenomena – it appeared in only one frame of the sequence, lasting for no more than 1/120th of a second. The last photo is that single frame. Absolutely incredible.

From International Space Station, we have a unique vantage point to observe lightning storms from directly above them. Much like from the ground, they appear as rapid, intense flashes that are over as quickly as they started. But, with the help of handheld cameras and a bit of practice (and, admittedly, some luck), we can capture these intense flashes with a very high frame rate then slow them down to see how the lightning propagates. It's lightning, in slow motion. This is one that occurred over Indonesia on 6/28. I shot it for a half second at 1/120 frame rate, so, 60 separate frames. I then compiled those frames into two videos: the first, in real-time, and the second, slowed down so that each frame is a half second to highlight the progression of the flash. Note the incredible burst of light in one frame, which includes what is likely a TLE on the upper left. A TLE, or Transient Luminous Event, is an electrical discharge that happens in the upper atmosphere above lightning storms (if you haven’t seen Ferry Farhan TLE photo from last week, head over to her page). As their name implies, these are transient, or short lived, phenomena – it appeared in only one frame of the sequence, lasting for no more than 1/120th of a second. The last photo is that single frame. Absolutely incredible.

82,113 просмотров

How will astronauts perform on the martian surface after a long trip through microgravity? We @NASA_Johnson are finding out. I ran suited tests for baseline data before flight, then will redo tests within a few days of landing from International Space Station later this year.

How will astronauts perform on the martian surface after a long trip through microgravity? We @NASA_Johnson are finding out. I ran suited tests for baseline data before flight, then will redo tests within a few days of landing from International Space Station later this year.

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A nighttime pass over the Eastern and Southern United States. I was astounded at the scale of recent thunderstorms … some of these flashes are as large as cities!

A nighttime pass over the Eastern and Southern United States. I was astounded at the scale of recent thunderstorms … some of these flashes are as large as cities!

COL Anne McClain

526,907 просмотров • 1 год назад

From International Space Station, we have a unique vantage point to observe lightning storms from directly above them. Much like from the ground, they appear as rapid, intense flashes that are over as quickly as they started. But, with the help of handheld cameras and a bit of practice (and, admittedly, some luck), we can capture these intense flashes with a very high frame rate then slow them down to see how the lightning propagates. It's lightning, in slow motion. This is one that occurred over Indonesia on 6/28. I shot it for a half second at 1/120 frame rate, so, 60 separate frames. I then compiled those frames into two videos: the first, in real-time, and the second, slowed down so that each frame is a half second to highlight the progression of the flash. Note the incredible burst of light in one frame, which includes what is likely a TLE on the upper left. A TLE, or Transient Luminous Event, is an electrical discharge that happens in the upper atmosphere above lightning storms (if you haven’t seen Ferry Farhan TLE photo from last week, head over to her page). As their name implies, these are transient, or short lived, phenomena – it appeared in only one frame of the sequence, lasting for no more than 1/120th of a second. The last photo is that single frame. Absolutely incredible.

From International Space Station, we have a unique vantage point to observe lightning storms from directly above them. Much like from the ground, they appear as rapid, intense flashes that are over as quickly as they started. But, with the help of handheld cameras and a bit of practice (and, admittedly, some luck), we can capture these intense flashes with a very high frame rate then slow them down to see how the lightning propagates. It's lightning, in slow motion. This is one that occurred over Indonesia on 6/28. I shot it for a half second at 1/120 frame rate, so, 60 separate frames. I then compiled those frames into two videos: the first, in real-time, and the second, slowed down so that each frame is a half second to highlight the progression of the flash. Note the incredible burst of light in one frame, which includes what is likely a TLE on the upper left. A TLE, or Transient Luminous Event, is an electrical discharge that happens in the upper atmosphere above lightning storms (if you haven’t seen Ferry Farhan TLE photo from last week, head over to her page). As their name implies, these are transient, or short lived, phenomena – it appeared in only one frame of the sequence, lasting for no more than 1/120th of a second. The last photo is that single frame. Absolutely incredible.

COL Anne McClain

82,113 просмотров • 1 год назад

Farewell to International Space Station! This is truly a special place, special mission, and special team that makes it happen. It is a bittersweet departure today – I have a keen awareness that I may never be back here, and even if I was, it would be at a different time with a different crew. This chapter is over. Spaceflight has always been a life goal, and it has turned into a life-fulfilling endeavor – but not for the reasons I thought growing up. When I was young, I pictured the launch, the incredible ball of fire and the acceleration, the spacewalks (how could you not wonder what it’s like to be in that suit?), and I was fascinated by the shuttles, capsules, and stations. But as I complete this second mission living and working in space, what draws me to this job is the people. Experiences like this are amazing, but the relationships we build that make it possible are the “why.” Every day, this mission depends on people from all over the world, of different nationalities, races, religions, and cultures. It depends on government and commercial entities, it depends on all political parties, and it depends on commitment to an unchanged goal over many years and decades. It depends on people dedicated to being part of something bigger than themselves, whose names may never be known but who wake up every day to make the world a better place and to be part of something they will be proud to tell their grandkids about. History will look kindly upon them. Humans have always had a propensity to explore … across lands and oceans, up mountains, and into the sky. We as a species will never stop wondering what else is out there, and what it would be like to go. But then, in the words of TS Elliot, “…at the end of all our exploring, will be to arrive where we started, and know the place for the first time.” Crew-10 is on its way home.

Farewell to International Space Station! This is truly a special place, special mission, and special team that makes it happen. It is a bittersweet departure today – I have a keen awareness that I may never be back here, and even if I was, it would be at a different time with a different crew. This chapter is over. Spaceflight has always been a life goal, and it has turned into a life-fulfilling endeavor – but not for the reasons I thought growing up. When I was young, I pictured the launch, the incredible ball of fire and the acceleration, the spacewalks (how could you not wonder what it’s like to be in that suit?), and I was fascinated by the shuttles, capsules, and stations. But as I complete this second mission living and working in space, what draws me to this job is the people. Experiences like this are amazing, but the relationships we build that make it possible are the “why.” Every day, this mission depends on people from all over the world, of different nationalities, races, religions, and cultures. It depends on government and commercial entities, it depends on all political parties, and it depends on commitment to an unchanged goal over many years and decades. It depends on people dedicated to being part of something bigger than themselves, whose names may never be known but who wake up every day to make the world a better place and to be part of something they will be proud to tell their grandkids about. History will look kindly upon them. Humans have always had a propensity to explore … across lands and oceans, up mountains, and into the sky. We as a species will never stop wondering what else is out there, and what it would be like to go. But then, in the words of TS Elliot, “…at the end of all our exploring, will be to arrive where we started, and know the place for the first time.” Crew-10 is on its way home.

COL Anne McClain

69,039 просмотров • 1 год назад

So, when I took this aurora, at first I thought that my settings were not correct because the aurora appeared white. I thought maybe the ISO was off, or I picked the wrong lens. Turns out, what I thought was white is actually light pink, and this led me down a path of learning. Aurora colors are the result of solar particles (think: microscopic sun bullets) interacting with Earth’s magnetospheric electrons (think: a bunch of charged particles which act like a force field around Earth that protect us from direct hits from the sun bullets). When there is a strong solar storm, which is basically a grouping of solar particles headed in our direction, the magnetospheric electrons get bombarded. While they still do their job of protecting us, they get super energized and are accelerated toward our poles. These now high-velocity electrons then hit different gases in the Earth’s atmosphere, mainly oxygen and nitrogen. When this happens, the gas molecules get excited, jump to a different energy level, and emit light at different wavelengths when they return to their original state. The color of that wavelength depends on the collision impact, type of gas molecule, atmospheric density, and altitude. Green is the most common aurora color, and it occurs when the electrons hit oxygen molecules between 60-150 miles altitude. If the solar particles hit oxygen but at a higher altitude, above 150 miles, the resultant color is red. This only happens under intense solar storm activity because of the lower density of atomic oxygen at higher altitudes. At lower altitudes during these intense storms, below 60 miles, auroras can appear purple or blue due to electrons hitting nitrogen molecules or pink when they hit slightly higher nitrogen around 60 miles. Auroras can appear other colors due to mixing of these phenomena. Now when I watch this video, I am amazed by the color variations. This one was very pink-hued!

So, when I took this aurora, at first I thought that my settings were not correct because the aurora appeared white. I thought maybe the ISO was off, or I picked the wrong lens. Turns out, what I thought was white is actually light pink, and this led me down a path of learning. Aurora colors are the result of solar particles (think: microscopic sun bullets) interacting with Earth’s magnetospheric electrons (think: a bunch of charged particles which act like a force field around Earth that protect us from direct hits from the sun bullets). When there is a strong solar storm, which is basically a grouping of solar particles headed in our direction, the magnetospheric electrons get bombarded. While they still do their job of protecting us, they get super energized and are accelerated toward our poles. These now high-velocity electrons then hit different gases in the Earth’s atmosphere, mainly oxygen and nitrogen. When this happens, the gas molecules get excited, jump to a different energy level, and emit light at different wavelengths when they return to their original state. The color of that wavelength depends on the collision impact, type of gas molecule, atmospheric density, and altitude. Green is the most common aurora color, and it occurs when the electrons hit oxygen molecules between 60-150 miles altitude. If the solar particles hit oxygen but at a higher altitude, above 150 miles, the resultant color is red. This only happens under intense solar storm activity because of the lower density of atomic oxygen at higher altitudes. At lower altitudes during these intense storms, below 60 miles, auroras can appear purple or blue due to electrons hitting nitrogen molecules or pink when they hit slightly higher nitrogen around 60 miles. Auroras can appear other colors due to mixing of these phenomena. Now when I watch this video, I am amazed by the color variations. This one was very pink-hued!

COL Anne McClain

49,121 просмотров • 1 год назад

Here is a little bit more about me, as I kick off my second mission to the International Space Station. What else would you like to hear about in the next few months?

Here is a little bit more about me, as I kick off my second mission to the International Space Station. What else would you like to hear about in the next few months?

COL Anne McClain

39,125 просмотров • 1 год назад

This is what we call “running stowage.” Frank G. wanted to know how this works, so hopefully this helps! We stow the majority of our gear into Cargo Transfer Bags, or “CTBs,” which are cloth rectangular or square containers with zipper access. A 1.0 CTB is about 2 ft by 2 ft by 8 inches. Then we have 0.5 CTBs, which are half that, and 2.0, 3.0, 4.0 and up to 10.0 CTBs as well. They each have a unique serial number, and their location and contents are tracked by our Inventory Management System. Here, Nichole “Vapor” Ayers and I are moving cargo from one location to another. She is using our electronic system to track what bags we move, while I am catching the bags and stowing them where they need to go. It wasn’t just a game of space-catch, though we did have some music playing and were having fun with it!

This is what we call “running stowage.” Frank G. wanted to know how this works, so hopefully this helps! We stow the majority of our gear into Cargo Transfer Bags, or “CTBs,” which are cloth rectangular or square containers with zipper access. A 1.0 CTB is about 2 ft by 2 ft by 8 inches. Then we have 0.5 CTBs, which are half that, and 2.0, 3.0, 4.0 and up to 10.0 CTBs as well. They each have a unique serial number, and their location and contents are tracked by our Inventory Management System. Here, Nichole “Vapor” Ayers and I are moving cargo from one location to another. She is using our electronic system to track what bags we move, while I am catching the bags and stowing them where they need to go. It wasn’t just a game of space-catch, though we did have some music playing and were having fun with it!

COL Anne McClain

29,187 просмотров • 1 год назад

Incredible storms over Myanmar, Thailand, Singapore, and Indonesia. While we see lightning somewhere on Earth every night pass, it’s not as common to see one this active.

Incredible storms over Myanmar, Thailand, Singapore, and Indonesia. While we see lightning somewhere on Earth every night pass, it’s not as common to see one this active.

COL Anne McClain

24,668 просмотров • 1 год назад

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