Space & Aviation
Robert Goddard signed letter offered in March 18 sale
Robert Goddard launched the first liquid-fuelled rocket in 1926
Astronaut Gus Grissom letter valued at $10,000
Astronaut Gus Grissom wrote the letter to his mother in 1961
Wilbur Wright Tissandier letter to soar to $45,000 among aviation items
Bonhams' Space History sale features aviator Wilbur Wright's letter to student Paul Tissandier
'Spectacular' Alan Shepard letter soars to World Record price at RR's space auction
The first American in space told his parents that he was to be considered for the 'Man in Space' program
