Results 311 to 320 of about 642,165 (350)

Fuel-Optimal Guidance for End-to-End Human-Mars Entry, Powered-Descent, and Landing Mission

IEEE Transactions on Aerospace and Electronic Systems, 2020
This article investigates the fuel-optimal guidance problem of the end-to-end human-Mars entry, powered-descent, and landing (EDL) mission. It applies a unified modeling scheme and develops a computationally efficient new optimization algorithm to solve ...
Changhuang Wan, Gangshan Jing, R. Dai, J. Rea   +3 more
semanticscholar   +1 more source

Europe to land on Mars

Engineering & Technology, 2014
Only one country has so far managed to land objects on Mars successfully - the USA. Not wanting to get left behind, Europe is building its own rover - the ExoMars. Its three prototypes are currently roaming a mock section of Mars built at Airbus's facilities in Stevenage, UK.
openaire   +2 more sources

Mars InSight Entry, Descent, and Landing Trajectory and Atmosphere Reconstruction

Journal of Spacecraft and Rockets, 2020
The InSight mission landed on the surface of Mars on 26 November 2018. The InSight system performance met all design requirements, although several performance metrics fell near the boundaries of t...
C. Karlgaard, Ashley M. Korzun, M. Schoenenberger, E. Bonfiglio, D. Kass, M. Grover   +5 more
semanticscholar   +1 more source

Landing on the Moon, Venus, and Mars

2011
The Soviets reached the zenith of their success at the Moon with robotic missions in 1970 and 1971. In September 1970 the Luna 16 mission successfully returned a sample of the Moon to Earth; an impressive achievement still unmatched by the US. In November the Luna 17 mission successfully deployed the first robotic rover on the Moon, Lunokhod 1; another
Mikhail Ya. Marov, Wesley T. Huntress
openaire   +2 more sources

Selection of the Mars Science Laboratory Landing Site

Space Science Reviews, 2012
The selection of Gale crater as the Mars Science Laboratory landing site took over five years, involved broad participation of the science community via five open workshops, and narrowed an initial >50 sites (25 by 20 km) to four finalists (Eberswalde, Gale, Holden and Mawrth) based on science and safety.
S. Lee, P. Bellutta, B. Pollard, Andres Huertas, Joseph R. Michalski, Joseph R. Michalski, Al Chen, D. Kipp, E. Z. Noe Dobrea, E. Z. Noe Dobrea, R. L. Kirk, Fred Calef, Y. Sun, Ashwin R. Vasavada, John A. Grant, Yasuhiro Katayama, Yasuhiro Katayama, Robin L. Fergason, H. L. Sladek, H. L. Sladek, Ross A. Beyer, John P. Grotzinger, K. Larsen, Richard V. Welch, R. H. Hoover, R. H. Hoover, Michael M. Watkins, Matthew P. Golombek, T. J. Parker   +28 more
openaire   +4 more sources

Mid Lift-to-Drag Rigid Vehicle 6-DoF Performance for Human Mars Entry, Descent, and Landing: A Fractional Polynomial Powered Descent Guidance Approach

AIAA Scitech 2020 Forum, 2020
Defining a feasible vehicle design and mission architecture capable of reliably delivering a payload of 20 metric tons (mt) or more is a great challenge for landing humans on Mars.
Breanna J. Johnson, P. Lu, R. Sostaric
semanticscholar   +1 more source

Waypoint-Optimized Zero-Effort-Miss/Zero-Effort-Velocity Feedback Guidance for Mars Landing

, 2013
This paper investigates the optimization approach to generate waypoints for the Mars landing problem in the context of employing the zero-effort-miss/zero-effort-velocity feedback guidance algorithm.
Yanning Guo, Matt Hawkins, B. Wie
semanticscholar   +1 more source

Second generation Mars landed missions

2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542), 2002
Mars future landed missions include safe, accurate landing of payloads large enough to accomplish a sample return mission or to accommodate both a comprehensive science instrument suite and extensive in situ resource utilization payloads. In addition, the landers may be fixed (immovable) or have sufficient mobility capability to rove multiple ...
S. W. Thurman, Dara Sabahi, James E. Graf, Howard J. Eisen, Tommaso P. Rivellini   +4 more
openaire   +2 more sources

Analysis of a terminal landing on Mars

Journal of Spacecraft and Rockets, 1995
This study consists of a preliminary performance and sensitivity assessment of trajectory and guidance capabilities of a Mars terminal landing phase. The phase begins with the end of the entry phase, which is at parachute deployment. Therefore, the trajectory investigated in this study starts at parachute deployment and continues through parachute ...
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What Went Wrong with the Mars Landing?

Science, 2000
Speculation regarding the failure of the Mars Polar Lander mission has not included the possibility of a fragile and thermally unstable soil at the landing site [see related News of the Week articles “Yet another loss to the martian gremlin” by Richard Kerr (10 Dec., p.
Stephen Guggenheim, F. Koster van Groos
openaire   +2 more sources