Model, Tsiolkovsky Space Craft
Soviet model makers built this spacecraft based on the designs and notes of Konstantin Tsiolkovsky. Late in his life, much of Tsiolkovsky’s theoretical work focused on ideas about transporting humans into space on board rockets. Although this model, reflecting the scientist’s ideas, grossly overestimates the living space available on board a rocket, it does convey a sophisticated understanding of the physical constraints of space travel for that time. Among Tsiolkovsky’s concerns were the effects of acceleration and weightlessness on the human body
A look at the chemistry behind the colours of various gemstones; read more & see a larger version of the graphic here: http://wp.me/p4aPLT-lj
The Science Report
by Stuart Gary
Early Earth could have been habitable
I’ve just written a story for ABC Science about a new study which suggests that isolated pockets of liquid water may have existed on the infant Earth even while it was being smashed by giant asteroids that boiled away the oceans and created vast seas of magma.
This means there could have been habitable regions on the Earth during the planet’s first half a billion years known as the Hadean epoch.
But, any life emerging during Earth’s first half billion years would need to have been resistant to extreme conditions, and capable of spreading from the few stable niches existing at that time.
The constant mixing and burial of the Earth’s crust by the unrelenting bombardment of asteroids, comets and meteors, during this Hadean epoch, means the geological history of this time is poorly understood.
If you missed my radio report on the story and want to find out more, check out the online version at:
Julia Nobis wearing Alexander McQueen for Vogue Japan September 2014, ph. Luigi & Iango