Professor Mike Merrifield holds a Titanium Eta Carinae in his fingertips. Deep Sky Videos: https://www.youtube.com/DeepSkyVideos See more links in the rest of this video description. Additive Manufacturing at Nottingham: http://bit.ly/1N2utIS The 3D structure paper by Steffen, et al: http://bit.ly/3D_ETA History of Eta Carinae: http://bit.ly/1CtOxbi 3D hydrodynamic simulations of binary colliding winds: http://arxiv.org/pdf/1310.0487.pdf Mike Merrifield on Twitter: https://twitter.com/profmike_m Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://bit.ly/NottsPhysics Sixty Symbols videos by Brady Haran