Using Dark Matter to Sense Dark Energy By Claudia MignoneMar. 25, 2010 , 11:43 AM Supermodel. The new Illustris simulation (screenshot above; video below) tracks the intertwined evolution of the distribution of dark matter (left) and ordinary matter (right)Read More

Dark energy, repulsive force that is the dominant component (73 percent) of the universe. The remaining portion of the universe consists of ordinary matter and dark matter. Dark energy, in contrast to both forms of matter, is relatively uniform in time and spaceRead More

Dark energy, repulsive force that is the dominant component (73 percent) of the universe. The remaining portion of the universe consists of ordinary matter and dark matter. Dark energy, in contrast to both forms of matter, is relatively uniform in time and spaceRead More

Named after the Greek word for unstable (astatos), Astatine is a naturally occurring semi-metal that results from the decay of uranium and thorium. In its most stable form - astatine-210 - it's got a half-life of just 8.1 hours, which means even ifRead More

  Physicists have measured the ease of taking an electron from lawrencium (element 103), which sits in the f-block annex of the Periodic Table. Measurements of an artificial radioactive element called lawrencium could revive an arcane controversy over the element’s position in theRead More

Welcome to UnicoreElements/We make the Periodic Table of the Elements come alive. We have been offering display-quality Element samples to the public since 2003. We cater to element collectors and any person or organization that needs small quantities of high quality element samples.Read More

RARE EARTH ELEMENTS The International Union of Pure and Applied Chemistry (IUPAC) defines rare earth elements (REE) or rare earth metals as a collection of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides (Note: Even though lanthanoid means 'like lanthanum'Read More