“seeing” the invisible: dark matter & dark energy Mustafa A. Amin ! Asst. Professor of Physics and Astronomy an orientation we are here we are here Image Credit: Hubble Ultra-Deep Field, NASA/ESA a lot of stuff ! ~ 100 billion ~ 100 billion all this “stuff ” — 5% ? 95% 68.3% DARK ENERGY 26.7% DARK MATTER STARS, GAS, ETC 5%