Brian Blessed

My brother Alan - who was seven years younger than me - died from leukemia when he was 52. He never knew a day's good health - I wish I could have given him some of my good health. But he was always so cheerful and sweet.

I'm a fully trained cosmonaut and have completed 800 hours training, which has made me the No. 1 civilian reserve ready to visit the International Space Station. I am determined to go up, and I want to explore the Moon, Mars and beyond!

Small samples in the centrifuge will spin at varying rates to create synthetic gravity, like the gravity of Mars or the gravity of the moon, and measure how the specimens respond within the centrifuge.