Results 11 to 20 of about 53,602 (307)

Mars Exploration Rovers Landing Dispersion Analysis [PDF]

AIAA/AAS Astrodynamics Specialist Conference and Exhibit, 2004
Landing dispersion estimates for the Mars Exploration Rover missions were key elements in the site targeting process and in the evaluation of landing risk. This paper addresses the process and results of the landing dispersion analyses performed for both Spirit and Opportunity. The several contributors to landing dispersions (navigation and atmospheric
Knocke, Philip C., Wawrzyniak, Geoffrey G., Kennedy, Brian M., Parker, Timothy J., Golombek, Matthew P., Duxbury, Thomas C., Kass, David M., Desai, Prasun N.   +7 more
openaire   +3 more sources

Landing on Mars [PDF]

Nature, 1973
Carl Sagan
openaire   +3 more sources

First Person Account: Landing a Mars Lander [PDF]

Schizophrenia Bulletin, 2001
The article that follows is part of the Schizophrenia Bulletin's ongoing First Person Account series. We hope that mental health professionals--the Bulletin's primary audience--will take this opportunity to learn about the issues and difficulties confronted by consumers of mental health care.
Claire Parker
openaire   +4 more sources

Backup strategies for Mars landing

, 2020
Entry, descent and landing (EDL) is probably the most difficult and risky phase of a human mission to Mars. It is in general acknowledged that once the vehicle enters the atmosphere, there is no abort to orbit option, the vehicle must land on the surface.
Salotti, Jean-Marc, Doche, Julien
openaire   +3 more sources

A probable ancient nearshore zone in southern Utopia on Mars unveiled from observations at the Zhurong landing area. [PDF]

Sci Rep
Wu B, Dong J, Wang Y, Rao W, Sun Z, Krasilnikov S, Li Z, Tan Z, Chen Z, Wang C, Ivanov M, Zhu J, Liu WC, Chen L, Li H.   +14 more
europepmc   +2 more sources

Identification of the Beagle 2 lander on Mars [PDF]

, 2017
The 2003 Beagle 2 Mars lander has been identified in Isidis Planitia at 90.43° E, 11.53° N, close to the predicted target of 90.50° E, 11.53° N. Beagle 2 was an exobiology lander designed to look for isotopic and compositional signs of life on Mars, as ...
Bridges, J. C., Clemmet, J., Croon, M., Muller, J. -P., Parker, T., Pillinger, J. M., Pullan, D., Putri, A. R., Sims, M. R., Tao, Y., Turner, S. M. R., Xiong, S.   +11 more
core   +2 more sources

Conceptual Design of Mars Lander with Novel Impact Intriguing System

, 2020
Landing robotic spacecrafts and humans on Mars has become one of the inevitable technological necessities for humans. Effectuating perfect Mars expedition requires landing of enormous cargoes, crewed modules, ascent vehicles, and scientific laboratories.
Annavarapu, Ramesh Naidu, M, Malaya Kumar Biswal   +1 more
core   +1 more source

EMMI - Electric Solar Wind Sail Facilitated Manned Mars Initiative [PDF]

, 2015
The novel propellantless electric solar wind sail concept promises efficient low thrust transportation in the Solar System outside Earth's magnetosphere.
Janhunen, Pekka, Merikallio, Sini, Paton, Mark   +2 more
core   +1 more source

Diurnal Dust Devil Behaviour for the Viking 1 Landing Site: Sols 1 to 30 [PDF]

, 2004
Previous martian studies have provided an understanding of diurnal dust devil behaviour for Viking 2 and the Mars Pathfinder landing sites. It is the purpose of this work to complete this analysis by analysing the meteorological data from the Viking 1 ...
Ringrose, Tim, Towner, Martin, Zarnecki, John   +2 more
core  

Double‐Stranded DNA Reduces dsRNA Degradation in the Saliva and Significantly Enhanced RNAi‐Mediated Gene Silencing in Halyomorpha halys

Advanced Biology, EarlyView.
The invasive pest Halyomorpha halys causes significant crop losses requiring innovative pest control strategies such as RNA interference (RNAi). However, oral RNAi is largely ineffective in H. halys. This study shows that double‐stranded DNA (dsDNA) stabilizes dsRNA in saliva by inhibiting a highly expressed nuclease.
Venkata Partha Sarathi Amineni, Georg Petschenka, Aline Koch   +2 more
wiley   +1 more source