Sampling soil or rocks from extraterrestrial celestial bodies is the essential step to detecting
the existence of water and life in celestial bodies, it is also an important channel to obtain …

Based on years of research conducted at the NASA Jet Propulsion Laboratory, Low-Energy
Lunar Trajectory Design provides high-level information to mission managers and detailed …

DESTINY+ is an upcoming JAXA Epsilon medium-class mission to fly by the Geminids
meteor shower parent body (3200) Phaethon. It will be the world's first spacecraft to escape …

This paper presents the trajectory design for EQUilibriUm Lunar-Earth point 6U Spacecraft
(EQUULEUS), which aims to demonstrate orbit control capability of CubeSats in the cislunar …

With the cancellation of the Apollo program after Apollo 17 returned from the Moon in 1972,
the focus of NASA switched to other areas of the Solar System. Study of the Moon did …

This paper globally explores two-impulse, low-energy Earth–Moon transfers in the planar
bicircular restricted four-body problem with transfer time of up to 200 days. A grid search …

A systematic method is developed that uses dynamical systems theory to model, analyze,
and construct low-energy ballistic lunar transfers (BLTs). It has been found that low-energy …

In this work, we investigate the behavior of low-energy trajectories in the dynamical
framework of the spatial elliptic restricted 4-body problem, developed using the Hamiltonian …

For deep-space mission design, the gravity of the Sun and the Moon can be first considered
and utilized. Their gravity can provide the energy change for launching spacecraft and …

Hayabusa2 is the ongoing JAXA's sample and return mission to the asteroid Ryugu. In late
2018, Ryugu was in superior solar conjunction with the Earth. It is the first time that a …