How NASA astronaut Frank Rubio’s body changed after more than a year in space

From bone density to muscle loss, a lot has changed in his body.

Published on Sep 29, 2023 at 12:39PM (UTC+4)

Last updated on Oct 2, 2023 at 11:07AM (UTC+4)

Edited by Kate Bain
Frank Rubio lead image

NASA astronaut Frank Rubio just got home after spending over a year in space.

The 47-year-old set the world record for the longest time spent in space by a US astronaut, but this comes at a cost.

READ MORE: NASA asteroid sample set to shed light on the solar system’s origins lands safely on Earth

Rubio was able to set foot on Earth for the first time in exactly 371 days at 7:17 ET on September 29 in Kazakhstan, according to the press release by NASA.

And this actually brings us on to the first of many consequences of spending that much time in space.

When we say ‘he set foot’, we only mean this metaphorically.

Having lived for over a year in microgravity, Rubio will need some time to readapt to Earth’s gravity and even walking may take a few weeks.

The absence of Earth’s gravity also causes a decrease of muscle mass and bone density, too.

Dr. Jennifer Fogarty, a doctor from Baylor College who works with NASA, said the biggest changes with bone and muscles loss occur in the first couple of months of a mission.

After the first few months, the body adjusts to the new condition and things get better.

“How do you coordinate movement like walking, which you haven’t done for a long period of time, and then the idea of balance? When you put those two together, it can create a precarious situation,” Dr. Fogarty said.

Further, Dr. Fogarty explains how your blood flow changes when living in weightless microgravity, which can cause eye swelling or blurry vision.

“Existing in a weightless environment is one of the most foreign things biologically that the body has to deal with,” Dr. Fogarty added.

NASA astronaut Scott Kelley spent 340 days in space between 2015 and 2016 and his physician said said 90 percent of these changes were resolved within a few months of Kelley’s return.

However, in addition to physical changes, which are generally temporary, astronauts also have to deal with psychological effects that come from being isolated for an extended period of time.

Psychologically, the biggest issue is sensory deprivation, which can cause anxiety and sleep loss.

Fogarty added that the unexpected can always occur, so the best thing NASA can do is make sure astronauts are well trained and prepared.

“We can select people, train them and make sure they’re very healthy before they go,” Fogarty said.

Now that the space race is back in full swing, we can expect to learn more on that front.

And it’s not just NASA either as new ‘space superpowers’ are emerging.

Not that long ago, India became the fourth country to land on the Moon, and the first to ever reach the South Pole of Earth’s satellite.

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