What Is It Like Living on Earth After Living in Space?

The best answer to any question.
Sept. 3 2013 1:03 PM

What Is It Like Living on Earth After Living in Space?

greisman

This question originally appeared on Quora.

Last week, Quora contributor and former NASA astronaut Garrett Reisman exlained what it is like to live in space. So naturally, we wanted to know what it was like when he came home.

Advertisement

First of all, the food is much better here on Earth. And taking showers and going to the bathroom are much easier to do here too.

But you do go through a strange adaptation process when you return to Earth. The first thing you notice is that everything seems really heavy. After 95 days on the International Space Station, I returned to Earth in the space shuttle Discovery. I took off my helmet, and it felt like I was holding the anchor of the U.S.S. Nimitz in my hand. Oh great, I thought, how am I ever going to brush my teeth? The brush will be too heavy!

81568658
Garrett Reisman (right) speaks to Chris Scolese (left), NASA Associate Administrator on June 14, 2008, after his two-week mission to space. After this, he went for a cheeseburger.

Photo by Pierre Ducharme/AFP/Getty Images

The next thing you notice is that your vestibular system is all messed up. Just sitting up took a lot of concentration. After about 15 minutes, I was able to stand, but I would have keeled right over if there weren't a lot of things to hold onto in the middeck of Discovery.

You see, your brain is remarkably adaptable. After just a few days in space, it figures out that your inner ear is producing nothing but garbage signals and so the brain turns the gains of those signals way down in its Kalman filter and cranks up the gains on your visual sensors, the eyes. Then all is well, until you come back to Earth. Now you need your inner ear sensor again, but the brain is still filtering it out. Gradually the brain re-calibrates, but it takes a while.

For me, the process went pretty quickly. We don't know why, but anecdotally, I can tell you that short and stocky people re-adapt more quickly than tall and lanky folks. This was only the second time in my life that being short came in handy. (The first time being during limbo contests at Bar Mitzvahs in New Jersey in the early 80s.)

After about an hour, I was able to walk around the Shuttle on the runway at the Kennedy Space Center. I was even able to go out to a local bar with my crewmates, and I managed to eat half a cheeseburger and half a beer. On my second flight, STS-132, which was only about two weeks in duration, we went to the same bar, and I had a whole cheeseburger and a whole glass of beer. So when people ask me what was the difference between a long-duration spaceflight and a short-duration spaceflight, I have a quantifiable answer: a half-cheeseburger and a half-beer!

More questions on astronauts:

TODAY IN SLATE

Sports Nut

Grandmaster Clash

One of the most amazing feats in chess history just happened, and no one noticed.

The Extraordinary Amicus Brief That Attempts to Explain the Wu-Tang Clan to the Supreme Court Justices

Amazon Is Officially a Gadget Company. Here Are Its Six New Devices.

Do the Celebrities Whose Nude Photos Were Stolen Have a Case Against Apple?

The NFL Explains How It Sees “the Role of the Female”

Future Tense

Amazon Is Now a Gadget Company

Food

How to Order Chinese Food

First, stop thinking of it as “Chinese food.”

Scotland Is Inspiring Secessionists Across America

The Country Where Women Aren’t Allowed to Work Once They’re 36 Weeks’ Pregnant

The XX Factor
Sept. 18 2014 11:40 AM The Country Where Women Aren’t Allowed to Work Once They’re 36 Weeks’ Pregnant
Moneybox
Sept. 17 2014 5:10 PM The Most Awkward Scenario in Which a Man Can Hold a Door for a Woman
  News & Politics
The World
Sept. 18 2014 1:34 PM Americans Fault Obama for Giving Them Exactly the Anti-ISIS Strategy They Want
  Business
Moneybox
Sept. 18 2014 2:18 PM The NFL Is Not a Nonprofit So why does it get to act like one?
  Life
Doonan
Sept. 18 2014 2:00 PM On the Death of My Homophobic Dog I named him Liberace, but I couldn’t have chosen a less appropriate namesake for this coarse, emotionally withholding Norwich terrier.
  Double X
The XX Factor
Sept. 18 2014 12:03 PM The NFL Opines on “the Role of the Female”
  Slate Plus
Behind the Scenes
Sept. 18 2014 1:23 PM “It’s Not Every Day That You Can Beat the World Champion” An exclusive interview with chess grandmaster Fabiano Caruana.
  Arts
Brow Beat
Sept. 18 2014 2:32 PM Kern Your Enthusiasm: The Friendliness of Chicago
  Technology
Future Tense
Sept. 18 2014 2:39 PM Here's How to Keep Apple From Sharing Your iPhone Data With the Police
  Health & Science
Bad Astronomy
Sept. 18 2014 7:30 AM Red and Green Ghosts Haunt the Stormy Night
  Sports
Sports Nut
Sept. 18 2014 11:42 AM Grandmaster Clash One of the most amazing feats in chess history just happened, and no one noticed.