Results 221 to 230 of about 166,259,392 (287)

Structure and Dynamics in the Magnetotails of Unmagnetized and Weakly Magnetized Bodies. [PDF]

open access: yesSpace Sci Rev
Stergiopoulou K   +13 more
europepmc   +1 more source

Low-Thrust-Enabled Highly-Non-Keplerian Orbits in Support of Future Mars Exploration [PDF]

open access: yesJournal of Guidance, Control, and Dynamics, 2011
The technology of high specific impulse propulsion systems with low thrust is improving, opening up numerous possibilities for future missions applying continuous thrust to force a spacecraft out of a natural Keplerian orbit into a displaced non ...
Malcolm Macdonald   +2 more
exaly   +4 more sources

Mars exploration

Nature, 2001
An international flotilla of spacecraft are to be sent to Mars over the next decade in an effort to understand the planet's geology and climate history, and to determine whether some form of life ever started there. At least two spacecraft will be sent at each launch opportunity, and at times up to four spacecraft may be operating simultaneously at the
M H, Carr, J, Garvin
openaire   +2 more sources

Exobiological exploration of Mars

Advances in Space Research, 1995
Of all the other planets in the solar system, Mars remains the most promising for further elucidating concepts about chemical evolution and the origin of life. Strategies were developed to pursue three exobiological objectives for Mars exploration: determining the abundance and distribution of the biogenic elements and organic compounds, detecting ...
H P, Klein, D L, DeVincenzi
openaire   +2 more sources

Swarm exploration and navigation on mars

2013 International Conference on Localization and GNSS (ICL-GNSS), 2013
We propose autonomous robotic swarm exploration to search for extra-terrestrial life in the Valles Marineris canyon system on Mars. The swarm consists of unmanned ground vehicles (UGVs) and unmanned aerial vehicles (UAVs). Key technologies are robust flight and swarm control algorithms as well as infrastructure-less swarm navigation.
Stephan Sand   +6 more
openaire   +3 more sources

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