Results 321 to 330 of about 642,165 (350)

How to land a human on Mars

Engineering & Technology, 2013
With Curiosity last year becoming the fourth rover to land on Mars, how long will it be before a human walks on the Red Planet?
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Toward improved landing precision on Mars

2011 Aerospace Conference, 2011
Mars landers to date have flown ballistic entry trajectories with no trajectory control after the final maneuver before entry. 12Improvements in landing accuracies (from ∼150 km from the target for Mars Pathfinder to ∼30–40 km for MER and Phoenix) have been driven by approach navigation improvements.
Aron A. Wolf, Yang Cheng, John M. Carson, Jordi Casoliva, Mark C. Ivanov, Behcet Acikmese   +5 more
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Adaptive pinpoint and fuel efficient mars landing using reinforcement learning

IEEE/CAA Journal of Automatica Sinica, 2012
Future unconstrained and science-driven missions to Mars will require advanced guidance algorithms that are able to adapt to more demanding mission requirements, e.g.
B. Gaudet, R. Furfaro
semanticscholar   +1 more source

Performance Trades for Mars Pinpoint Landing

2006 IEEE Aerospace Conference, 2006
Previous Mars landers have been able to land only within tens to hundreds of km of a target site. Principal sources of uncertainty are approach navigation, atmospheric modeling, and vehicle aerodynamics; additional (lesser) uncertainty sources are map-tie error and wind drift.
K. Gromov, Mark C. Ivanov, Behcet Acikmese, Aron A. Wolf, Scott R. Ploen, J. Tooley   +5 more
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Mars 2020 Entry, Descent, and Landing System Overview

IEEE Aerospace Conference, 2019
Building upon the success of the Mars Science Laboratory (MSL) landing and surface mission, the Mars 2020 project is a flagship-class science mission intended to address key questions about the potential for life on Mars and collect samples for possible ...
A. Nelessen, Chloe Sackier, I. Clark, P. Brugarolas, Gregorio Villar, A. Chen, Aaron Stehura, R. Otero, Erisa Stilley, D. Way, K. Edquist, S. Mohan, Cj Giovingo, Mallory Lefland   +13 more
semanticscholar   +1 more source

Balloons for controlled roving/landing on mars

Acta Astronautica, 1999
Abstract Until now, the only practical balloon systems proposed to explore the martian atmosphere have been superpressure balloons, which fly at a constant altitude, or short-lived helium balloons, which precariously drag a snake through all types of surface weather, or a day/night combination of the two.
Jacques Blamont, Steve Saunders, Jack A. Jones, Andre Yavrouian   +3 more
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Design and Fabrication of the Mars Helicopter Rotor, Airframe, and Landing Gear Systems

AIAA Scitech 2019 Forum, 2019
The Mars Helicopter is an autonomous 1.8 kg co-axial, counter-rotating rotorcraft baselined to fly on the Mars 2020 mission to demonstrate aerial mobility on the surface of Mars. In this paper the authors describe the design, development, and fabrication
Benjamin Pipenberg, M. Keennon, J. Tyler, B. D. Hibbs, Sara A. Langberg, J. Balaram, H. Grip, Jack Pempejian   +7 more
semanticscholar   +1 more source

An Analysis and Simulation of Mars Landing

1970
A novel approach to simulate a landing on Mars has been developed, and a series of tests conducted on a prototype of an unmanned Mars lander. Recently, an advanced development program, in which a Mars entry and landing system was fabricated and tested, was successfully completed.
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Assessment of the Mars 2020 Entry, Descent, and Landing Simulation

AIAA SCITECH 2022 Forum, 2022
D. Way, S. Dutta, C. Zumwalt, David Blette   +3 more
semanticscholar   +1 more source

Getting There: Landing an Onion on Mars

2013
To try to simplify the ideas in this book it is helpful to visualize this informational ecosystem in layers. To aid in this one might imagine a metaphor to describe the involved dynamic and continuous process. It is somewhat of a two-part metaphor to be specific.
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