Triplanetary is a science fiction novel and space opera by American writer E. E. Smith. It was first serialized in the magazine Amazing Stories in 1934. After the original four novels of the Lensman s
Dust-jacket from the first edition
The first installment of Triplanetary took the cover of the January 1934 issue of Amazing Stories, illustrated by Leo Morey.
Another Morey cover illustrated the third installment in the March 1934 Amazing Stories.
Similar to skydiving, space diving is the act of jumping from an aircraft or spacecraft in near space and falling towards Earth. The Kármán line is a common definition as to where space begins, 100 km
Triplanetary (novel)
…old-fashioned space opera, with a typical romance"; he faulted Smith's modifications to fit the story into his Lensman continuity as "far from convincing". Space diving Bergenholm space drive…
Joseph Kittinger leaps from his gondola at 31.3 km (102,800 feet).