NASA: National Aeronautics and Space Administration

  1. Special Note


    Ask an Astrobiologist has received more than 2500 questions about Nibiru and 2012, with more than 200 answers posted. Please read a summary of the answers that have already been posted, view a video on these topics, use the search feature and read the FAQ’s before submitting questions on these topics.

  1. Question

    How does microgravity affect humans during space travel?

    Microgravity has many effects on humans, and understanding these effects (and where possible developing countermeasures) has been essential for safe, long-duration human flight. You can find several earlier answers under the "life sciences" heading, such as the following (which contain additional links)

    http://nai.arc.nasa.gov/astrobio/astrobio_detail.cfm?ID=494

    http://nai.arc.nasa.gov/astrobio/astrobio_detail.cfm?ID=406

    David Morrison and David Lamb
    NAI Central

    August 5, 2003