With the arrival of a visiting crew still delayed, science and maintenance work aboard the International Space Station continued to fill the week of expedition 73 of the crew, along with the time for the observations of the earth and an interview for a podcast.
Orbital observation
Is it a green aurora with pink stripes or white aurora with green stripes? That, apparently, became the question at the International Space Station, at least for the Expedition 73 Flight Engineer and Astronaut of NASA Anne McClain.
“Then, when I returned this dawn
At first I thought that my configuration was not correct, correct, the dawn looked white. I thought the ISO may be out, or chose the wrong lens. It turns out that what I thought was white is actually Pink, and this took me on a learning path, “McClain wrote on Tuesday (June 17) in an update of Orbit’s social networks.
As McClain discovered, the color of Aurora depends on several different factors, including the molecule that hits the atmosphere of the earth, the nature of the impact itself, the density of the atmosphere at the point of the colurses and the altitude of the altitude or the altitude.
“Green is the most common aurora color, and it occurs when voccubs reach oxygen molecules between 60-150 miles [100-240 kilometers] Altitude, “McClain wrote.” If solar particles hit oxygen but at a high altitude, above 150 miles [240 kilometers]The resulting color is ed. It only occurs under intense solar storm activity due to the lower atomic oxygen density at higher altitudes. ”
And as McClain discovered, the dawn he recorded “was very pink!”
Science status
Among the investigation that was carried out aboard the space station this week was:
Kingdom -Expedition 73 NASA flight and astronaut engineer Jonny Kim installs around the space station as part of the demonstration of autonomous logistics management enabled by RFID. Realm uses a free flight robot called Astrobee to track labeling and loading equipment, which can make it faster and easier for crew members to find the elements that need them to need them.
Biomonitor -Kim also spent two days this week continuing a test with a Canadian construction vest that allows the collection of data on the user’s physiological state, including heart rate, blood pressure and body temperature. Kim evaluated the comfort of the device turning 48 hours, hey.
Ring cut droplet – NASA’s Astronaut and Flight Engineer, Nichole Ayers, continued his work since last week, changing protein samples and adding new test cells to an experiment that proves surface tension as a way to contain liquids and observe the proteins of the manufacture of liquids of others.
Sergey Ryzhikov and Alexey Zubritskiy, flight engineers of the Russian Space Agency Roscosmos, used acoustic sensors placed in the neck as part of a respiratory study on the sounds they make when exhaling.
Station maintenance
The crew also dedicated time to clarifying space stations systems, which include:
Window inspections -Rewing within the US laboratory. “Destiny”, McClain examined and photocked the condition of each of the module windows. Later, she did the same within the cupola stations, inspecting each or its seven windows.
Expedition 73 Takuya Onishi commander also worked on windows, but within the Kibo Jaxa module (Japan Aerospace Exploration Agency), including glass purtholes in the electrostatic levitation oven, which is used suspended suspended suspended suspended suspended.
Of crank, handles and stamps – Onishi passed this week by cleaning the stamps on the clabs between each of the US operating segment modules. UU., In addition to eliminating the dirt and dust from the handles in each hatch.
Meetings – Onishi, McClain, Ayers and Kim talked to Joe Acua, head of the NASA Astronaut Office, as well as the main flight director of his expedition to review his next activities and plans for the station.
Ryzhikov and Zubritskiy also searched the Zvezda service module for an additional stowage space. Together with Kirill Peskov, the three Russian cosmonauts also worked on the cleanliness and care of two Orlan spaces that will be used in future space walks.
Astronaut activity

Watch
On Tuesday (June 17), Ayers taught part in a Podcast interview for the United States Air Force, the Academy Graduate Association. A newly promoted colonel in the Air Force, Ayers described seeing the earth for the first time in space.
“It was one of the most surprising things I’ve had,” he said. “And then see the earth from the dome and the laboratory window here, you do not see country or state lines on Earth. It is not as if each state has a different solid color. There is only geography and only land, so you reach the lexture, the worlds or worlds or worlds.”
Ayers said he has come to see that our planet is “so fragile.”
“It really has done me because to take better care this land and when I get home, I want to do things a little better and take that extra scooter,” said Ayers.
Visitors along the way
A second week passed without the expected and now delayed arrival of the fourth visiting crew of Axiom Space.
According to NASA’s latest update on Thursday (June 19), a new launch date is expected for the AX-4 team “in the next few days.” NASA takes the additional time to analyze leak repair on the Russian side of the space station.
Axiom Space’s Ax-4 Commander Peggy Whitson, A Retired Nasa Astronaut, Ready to Launch with isro (Indian Space Research Organization) Astronaut Shukla, ESA (European Space Agency) Project Astrona-Tesib Or Tosiby Or Tosiby Or Tosiby Or Tosiby Or Tosiby Or Tosiby Or Tosiby Tosiby Or Tosiby Or Tosiby or Hungary.
For the numbers
As of Friday (June 20), there are 7 people On board the International Space Station: Comandante Takuya Onishi or Jaxa, Anne McClain, Nichole Ayers and Jonny Kim or Nasa and Kirill Peskov, Sergey Ryzhikov and Alexey Zubritsky or Roscosmos, all flight engineers.
There is Two spacecraft of the docked crew: Spacex “Endurance” dragon attached to the front port of the Harmony module, and the MS-27 roscosm soy linked to the land port of the Pricoal node.
There are also Two collapse ships docked: Progess MS-29 (90p) of Roscosmos connected to the space port of the Poisk module and the MS-30 progress (91p) connected to the Popa port of the Zvezda service module.
