Results 101 to 110 of about 295,166 (297)
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley +1 more source
LANDSAT/MMS propulsion module design. Volume 1: Task 4.3, trade studies [PDF]
Evaluations are presented of alternative LANDSAT follow-on launch configurations to derive the propulsion requirements for the multimission modular spacecraft (MMS).
Etheridge, F. G. +2 more
core +1 more source
Fast E-sail Uranus entry probe mission [PDF]
, 2014 The electric solar wind sail is a novel propellantless space propulsion concept. According to numerical estimates, the electric solar wind sail can produce a large total impulse per propulsion system mass.
Janhunen, Pekka +5 more
core +3 more sources
Distributed Self‐Triggered Formation Control for Multiple Mobile Robots With Dynamic Mappings
International Journal of Robust and Nonlinear Control, Volume 35, Issue 15, Page 6444-6462, October 2025.ABSTRACT This article proposes a distributed self‐triggered formation control scheme for a group of mobile robots to achieve a desired formation. The robots are assumed to have convex polygon geometric properties. Switching modes are introduced into the distributed formation controller design to balance formation moving and inter‐robot collision ...
Yutong Liu +4 more
wiley +1 more source
A Microwave Thruster for Spacecraft Propulsion
, 2012 This presentation describes how a microwave thruster can be used for spacecraft propulsion. A microwave thruster is part of a larger class of electric propulsion devices that have higher specific impulse and lower thrust than conventional chemical rocket engines. Examples of electric propulsion devices are given in this presentation and it is shown how
openaire +3 more sources
Evaluation of the use of on-board spacecraft energy storage for electric propulsion missions [PDF]
On-board spacecraft energy storage represents an under utilized resource for some types of missions that also benefit from using relatively high specific impulse capability of electric propulsion.
Palmer, F. M., Poeschel, R. L.
core +1 more source
Forecast analysis on satellites that need de-orbit technologies: future scenarios for passive de-orbit devices [PDF]
, 2016 Propulsion-based de-orbit is a space-proven technology; however, this strategy can strongly limit operational lifetime, as fuel mass is dedicated to the de-orbiting. In addition previous reliability studies have identified the propulsion subsystem as one
Kingston, Jennifer, Palla, Chiara
core +2 more sources
Thermal Infrared Spectrometers for the Polar Radiant Energy in the Far‐Infrared Experiment (PREFIRE)
Earth and Space Science, Volume 12, Issue 10, October 2025.Abstract The Polar Radiant Energy in the Far‐InfraRed Experiment (PREFIRE) was selected by NASA to fly two miniaturized Thermal InfraRed Spectrometers (TIRS) capable of distinguishing the spectral signatures of surface and atmospheric properties in Earth's polar regions.
Brian J. Drouin +18 more
wiley +1 more source
Advanced propellant management system for spacecraft propulsion systems. Phase 1 - Survey study and evaluation [PDF]
Apollo spacecraft propulsion system propellant ...
Balzar, D. L. +4 more
core +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.Abstract The Planetary Instrument for X‐ray Lithochemistry (PIXL) onboard the Perseverance rover has characterized the composition of Martian regolith at a scale of hundreds of microns using micro‐focus X‐ray fluorescence spectroscopy. PIXL data reveal a diverse population of regolith grains with distinct spectral, chemical, and crystallographic ...
Andrew O. Shumway +23 more
wiley +1 more source