Engineering topics
Publications and source records attributed to Leifer, S..
NASA is considering missions to explore new-interstellar space (40-250 Astronomical Units) early in the next decade as the first step toward a vigorous interstellar exploration program.
It the 21 years since its launch, the Voyager I spacecraft has traveled over 6.5 billion miles from Earth.
Low thrust trajectory analyses were used to examine the feasibility of using solar electronic propulsion for Earth escape from a negative C3 launch for deep space missions in order to significantly increase the net delivered mass capability of inexpensive launch vehicles.
Advanced electric and plasma propulsion research activities are currently underway through the NASA Advanced Space Transportation Program (ASTP) Propulsion Research activity.
Experiments to determine the cause of fullerene decomposition at temperatures above 973k were conducted by spectroscopic analysis of samples heated in vacuo.
Utilizing a crossed electron beam-molecular beam collision geometry, mass spectra of C(sub 60) and C(sub 70) ions have been obtained for an electron impact energy range of 20 eV to 600 eV.