Results 261 to 270 of about 53,602 (307)
Some of the next articles are maybe not open access.
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
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
Selection of the Mars Science Laboratory Landing Site
Space Science Reviews, 2012The 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 +28 more
openaire +4 more sources
Landing on the Moon, Venus, and Mars
2011The 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
Analysis of a terminal landing on Mars
Journal of Spacecraft and Rockets, 1995This 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 ...
openaire +2 more sources
What Went Wrong with the Mars Landing?
Science, 2000Speculation 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
Performance Trades for Mars Pinpoint Landing
2006 IEEE Aerospace Conference, 2006Previous 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 +5 more
openaire +2 more sources
Toward improved landing precision on Mars
2011 Aerospace Conference, 2011Mars 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 +5 more
openaire +2 more sources
Getting There: Landing an Onion on Mars
2013To 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.
openaire +2 more sources
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?
openaire +2 more sources
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?
openaire +2 more sources
Second generation Mars landed missions
2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542), 2002Mars 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 +4 more
openaire +2 more sources