The Helianthus mission proposal is based on maintaining an artificial L 1-type equilibrium
point in the Sun-Earth gravitational field by means of a square solar sail, which should …

The solar sail spacecraft utilizes Solar Radiation Pressure (SRP) to achieve propulsion,
which can realize long-term acceleration without fuel consumption, making it an appealing …

Propellantless propulsion systems allow innovative mission scenarios to be envisaged,
including the generation and the stabilization of artificial equilibrium points in the circular …

A gravity tractor spacecraft propelled by a diffractive sail tracking a displaced orbit offers a
potential option for deflecting near-Earth asteroids. This study delves into the preliminary …

To address the global warming problem, one of the space-based geoengineering solutions
suggests the construction of an occluding disc that can work as a solar curtain to mitigate …

The dynamics and control strategies of a full-scale flexible electric solar wind sail (E-sail)
spacecraft are studied in this work. The configuration of the E-sail is an umbrella shape …

This paper investigates approximate solutions to the two-dimensional equations of motion of
a generalized sail-based spacecraft. A generalized sail is a propellantless propulsion …

The analysis of the optimal control law that steers a solar sail-based spacecraft from a given
initial condition toward a final target state is typically carried out using either indirect or direct …

A magnetic sail is an advanced propellantless propulsion system concept for deep space
missions, proposed by Dana Andrews and Robert Zubrin about 30 years ago. The thrust is …

As an innovative spacecraft propellantless propulsion technology, the electric sail can
generate electric fields that interact with the solar wind, generating continuous propulsive …