Some have intersting insides, like geodes, with beautiful crystalline centers and dull outsides.
Today's Astronomy pic of the day is a cross section of cosmic debris,
falling piece of asteroid, and not native to Earth.
Could these be seeds of change and evolution?
Image Credit: NASA / JPL-Caltech / Hap McSween (Univ. Tennessee), A. Beck and T. McCoy (Smithsonian Inst.)