重力控制推进：朝向一般相对论方法

虚拟重力控制及其对空间推进的影响

Hypothetical Gravity Control and Possible Influence on Space Propulsion

在几乎所有被援引或提出来改变或屏蔽引力的概念中，人们都直觉地认为，操纵引力会自动导致推进力的突破。在这项研究中，它表明，即使重力可以沿着操纵方案概述的假设控制，在推进方面的收益将是适度的，不会导致突破。虽然所提出的操纵方案并不详尽，但它们包括了从当前物理学角度来看最简单的操纵方案。

束流空间推进

Beam Space Propulsion

作者提出了一种革命性的方法，非火箭的能量转移和推力到数百万公里的距离。作者发展了理论并进行了计算。该方法比通过高频波传输能量更有效。该方法可用于空间发射和用于加速宇宙飞船和探测器以非常高的速度，通过当前技术达到相对论速度。研究还包括说明所建议的方法的可能性的前瞻性项目。

Propulsion of Spacecrafts to Relativistic Speeds Using Natural Astrophysical Sources

In this paper, we explore from a conceptual standpoint the possibility of using natural astrophysical sources to accelerate spacecrafts to relativistic speeds. We focus on light sails and electric sails, which are reliant on momentum transfer from photons and protons, respectively, because these two classes of spacecrafts are not required to carry fuel on board. The payload is assumed to be stationed near the astrophysical source, and the sail is subsequently unfolded and activated when the source is functional. By considering a number of astrophysical objects such as massive stars, microquasa…

Target selection for a small low-thrust mission to near-Earth asteroids

The preliminary mission design of spacecraft missions to asteroids often involves, in the early phases, the selection of candidate target asteroids. The final result of such an analysis is a list of asteroids, ranked with respect to the necessary propellant to be used, that the spacecraft could potentially reach. In this paper we investigate the sensitivity of the produced asteroids rank to the employed trajectory model in the specific case of a small low-thrust propelled spacecraft beginning its journey from the Sun-Earth $L_2$ Lagrangian point and heading to a rendezvous with some near-Earth…

引力助推作为相对论引力的测试

Gravity assist as a test of relativistic gravity

本文提出利用引力助推机动评估爱丁顿后牛顿参数$β$和$γ$，发现其变化$10^{-4}$可使探测器远日点偏移约50公里，为测试相对论引力提供新途径。

用甚长基线干涉术检验重力传播的相对论效应

Testing Relativistic Effect of Propagation of Gravity by Very-Long Baseline Interferometry

结果表明，在类星体与木星的视线近角相遇期间，有限的重力速度影响类星体的甚长基线干涉观测。下一次这样的活动将于2002年9月8日举行。这封信提出了一种新的广义相对论实验测试，其中重力传播的影响可以通过非常长的基线干涉测量法直接测量，作为除了对数夏皮罗时间延迟之外的额外时间延迟（夏皮罗，I。一、1964年，物理学评论快报，13，789）。