Guinea - Physicist John Wheeler & Space - 6 Stamp Mint Sheet - 7B-944

This is a beautiful sheet of 6 stamps, issued by Guinea in 2008, honoring American theoretical physicist John Archibald Wheeler. Featured on the stamps are the European Space Agency's International Gamma-Ray Astrophysics Laboratory (INTEGRAL) operational Earth satellite, the Fermi Gamma-ray Space Telescope space observatory, NASA's Swift Gamma-Ray Burst Mission robotic spacecraft, the Gravity Probe B gyroscope, American theoretical physicist Kip Thorne, Nobel Prize-winning physicist Niels Bohr, and theoretical physicist Albert Einstein. The sheet is Michel catalog #5873-8, and is Post Office fresh, mint never hinged, and F/VF.