ESA - Blue Dot Mission patch.
20 June 2014
Flying over Earth
Three weeks into ESA astronaut Alexander Gerst’s Blue Dot mission on the International Space Station and the new arrival is now spending more time on scientific research in the microgravity laboratory.
Alexander has worked on controlled fires in space and continuously monitored his sleep patterns, at the same time as making sure the orbital outpost is working at full capacity.
Apart from continuing the long-term studies on eyes and headaches in space, Alexander recorded his temperature and hormones over 36 hours to understand his sleep patterns.
Columbus laboratory
Astronauts on the Station witness 16 sunrises and sunsets each day – whereas on Earth our bodies rely on sunlight to kick-start hormone production that make us sleepy or wake us up.
Researchers are interested to see how the unique 90-minute days influence sleep. Aside from making sure astronauts feel awake at critical moments, this research in space allows sleep specialists to test theories that they couldn’t anywhere else.
Alexander acted as a weightless firestarter and firefighter this week when he ignited small samples of fuels safely contained in ESA’s glovebox to see how they burn in space. He volunteered as a fireman before becoming an astronaut, so the experiment was in good hands.
This research will improve computer models for fire detectors and extinguishers, both in space and on Earth. He explained the experiment via Twitter: “Burning things in space for better fire safety on Earth.”
Burning fuel in space
Elsewhere, Alexander took samples of his blood and saliva and collected data on his eyes, his skin and his body so researchers can understand how astronauts react to weightlessness.
Other notable experiments included the harvesting of space-grown salads – unfortunately for the astronauts, they are not allowed to eat them.
Spacewalk
Yesterday, cosmonauts Oleg Armetyev and Alexander Skvortsov spent over six hours working outside the Station to install an antenna, take samples and move experiments. Meanwhile the four astronauts inside continued their science activities.
Checking spacesuit
Earlier, Alexander thoroughly checked a newly arrived US spacesuit. Before being declared ready for use, he had to make sure it had survived its climb into space.
Spacewalk
Image above: Russian cosmonauts Alexander Skvortzov and Oleg Artemyev spent over six hours working outside the International Space Station on 19 June 2014. This picture was taken by ESA astronaut Alexander Gerst from inside the orbital outpost.
Alexander even had time this week for educational activities for Earth Guardian, inspiring children to observe geographical features such as oceans, rivers, landscapes, mountains and forests in their areas during the summer holidays.
Related links:
All about Blue Dot: http://www.esa.int/Our_Activities/Human_Spaceflight/Blue_dot
Connect with Alexander Gerst: http://alexandergerst.esa.int/
Where is the International Space Station?: http://www.esa.int/Our_Activities/Human_Spaceflight/International_Space_Station/Where_is_the_International_Space_Station
Images, Text, Credits: ESA / NASA.
Greetings, Orbiter.ch
