SpaceX Polaris Dawn Day 4 Updates: Scientific experiments

SpaceX Polaris Dawn mission has wrapped up Day 4 in Space and here are the updates that you need to know about the latest activities.

On Day 4, the Polaris Dawn crew spent the majority of their time on science and research. Polaris Dawn partnered with 31 institutions from across the world.

A few of the studies the crew has focused on since arriving in orbit have included assessing the effects of microgravity on the human airway and veinous system. They also examined how blood flow restriction alters blood flow in space using ultrasound and smartwatches.

As humans become a spacefaring civilization, having the proper support system in the event of medical emergencies is key.

The Polaris Dawn crew tested out Tempus Pro, a commercial off-the-shelf device that can collect and integrate measurements of health – including blood pressure, heart rate, respiration rate, temperature, and more – along with ultrasound imaging capabilities.

The crew was able to use it to assess and compare vital sign data collected pre-flight to that collected during their time in orbit.

The crew studied the effects of microgravity on ocular health to help contribute to both preventative and post-diagnosis treatments associated with Spaceflight Associated Neurocular Syndrome (SANS). This is experienced by many astronauts during their first flight to space.

The astronauts keep on testing Starlink’s internet connection and continue to share files with teams on Earth.

Earlier in the week, the crew recorded Mission Specialist Sarah Gillis playing “Rey’s Theme” by John Williams on the violin. Once complete, the crew successfully sent the files down to Earth over Starlink to help create this special music event named “Harmony of Resilience.”

With these activities, Polaris Dawn concluded Day 4 and gearing up for their final day on orbit. On day 5, the crew will conduct more research and Starlink tests.

(Source)