ALBUQUERQUE, N.M.-- The pilots of a helium balloon attempting a record-breaking ... "Think of it as hitting a wall: It will have to go left or right," their mission control said in a statement.

Today, Berlin is once again divided, this time by an 11-foot-tall wall of illuminated balloons. The Lichtgrenze (translation: "border of light") will stretch for 10 miles along the same path as ...