Short answers, pulled from the story.
The Albert Einstein Memorial is located in Washington, D.C., at the southwest corner of the grounds of the National Academy of Sciences, at 2101 Constitution Avenue N.W. It sits in a grove of elm and holly trees near the Vietnam Veterans Memorial.
Robert Berks sculpted the Albert Einstein Memorial. Berks was known for portrait busts and statues, including likenesses of John F. Kennedy at the Kennedy Center and Mary McLeod Bethune in Lincoln Park, Washington, D.C. He based the 1979 monument on a bust he had sculpted from life during a sitting with Einstein at Princeton in 1953.
The Albert Einstein Memorial was unveiled on the 22nd of April 1979, at the National Academy of Sciences' annual meeting. The date honored the centennial of Einstein's birth.
The more than 2,700 metal studs embedded in the memorial's circular granite dais represent the positions of astronomical objects at noon on the 22nd of April 1979, the day the memorial was dedicated. The objects include the sun, moon, planets, 4 asteroids, 5 galaxies, 10 quasars, and many stars. Their positions were calculated by astronomers at the U.S. Naval Observatory.
Three equations are engraved on the manuscript papers held in the statue's left hand. They represent the general theory of relativity, the photoelectric effect, and the equivalence of energy and matter.
Two replicas of the Albert Einstein Memorial exist. One is in the academy garden of the Israel Academy of Sciences and Humanities. The other is on the campus of the Georgia Institute of Technology in Atlanta, Georgia.