Life in Mars Cannot be Healthy After All

Immune system ages faster in Mars owing to low gravity conditions. A new study found that spaceflight may be associated with a process of accelerated aging of the immune system. Specifically, researchers found that mice in low gravity conditions experience changes in B lymphocyte production in their bone marrow similar to those observed in elderly mice living in Earth conditions. Jean-Pol Frippiat at Lorraine University in Vandoeuvre-les-Nancy, France ...