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Astronaut Edward M. (Mike) Fincke, Expedition 9 NASA science officer and flight engineer aboard the International Space Station, juggles fresh fruit in microgravity.
Courtesy of NASA.

What is microgravity? How is it created? And how does it impact astronauts during spaceflight? Gregory Vogt, EdD, provides answers to these and other questions about the near weightless conditions in space.

Author(s): David R. Caprette, PhD
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Myosin, the “Motor” Molecule

The Pattern of Skeletal Myosin Heavy Chain (MHC) Isoform Transitions

Why Do Skeletal Muscle Fibers Atrophy During Space Flight?

Absolute and Relative Muscle Weight in Response to Muscle Unloading in Rodents

Human Muscle Response Under Different Conditions of Unloading

Knee Extensor Muscle Size in Response to Different States of Unloading

Muscles Regulate Both Their Size and Phenotype in Response to Loading Conditions


Peripatric Speciation

Sympatric Speciation

Rate of Speciation

Change in Approach to Science Education

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