Media Invited to International Earth Observation Briefing, Exhibit The United States is hosting the sixth plenary meeting of the Group on Earth Observations, or GEO, this week at the Ronald Reagan Building, 1300 Pennsylvania Ave., NW, in Washington. The press event will be held at 12:45 p.m. EST in the Reagan Building's Hemisphere A area. The exhibition in the Reagan Building's Atrium Hall will be open to the public on Nov. 17 from 11 a.m. to 7 p.m. and Nov. 18 from 9 a.m. to 4 p.m.