The Mice [NGC 4676] are two gallaxies about 300 million light-years from Earth. These two galaxies will eventually merge into a single, giant galaxy. Credit: NASA, H. Ford [JHU], G. Illingworth [UCSC/LO], M.Clampin [STScI], G. Hartig [STScI], the ACS Science Team, and ESA.
Plasma Ball Physics
A plasma ball is fun, but plasmas are an important part of our physical universe. From lightning to stars to the Northern Lights, plasmas are all around us.