A Mariner 9 atlas of the moons of Mars

Veverka, J.; Noland, M.; Sagan, Carl; Pollack, James B.; Quam, Lynn H.; Tucker, Robert B.; Eross, B.; Duxbury, T.; Green, William

doi:10.1016/0019-1035(74)90006-2

Cited by 25 publications

(10 citation statements)

References 11 publications

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“…Discussions of the possibility that asteroids may be composed of "a loose agglomeration of material held together gravitationally" dates back at least as far as Mariner 9 studies of Phobos and Deimos (cf. Veverka et al 1974). This idea was expanded upon in reports from 1977 to 1979 (Chapman 1978, Davis et al 1979, Hartmann 1979) and the first use of the term "rubble pile" appeared in Davis et al (1979, p. 533).…”

Section: What Is a "Rubble Pile" Asteroid?mentioning

confidence: 88%

“…Such an asteroid would not be comparable to the strength-dominated laboratory targets from which many characteristics of asteroids have been estimated (Love and Ahrens 1996). According to models of asteroid collisions, craters can form in the "gravity scaling regime" on a target where gravity, not physical strength, controls crater size and growth (Veverka et al 1974, 1996, Love and Ahrens 1996. Several large (19-33 km in diameter) craters were observed on 243 Mathilde, an asteroid that is itself only 53 km in diameter (Veverka et al 1997).…”

Section: Strength Of Rubble Pilesmentioning

confidence: 99%

“…Structural continuity of an asteroid is suggested by the presence of grooves and ridges (Veverka et al 1974, Thomas et al 1979. Grooves are considered to be expressions of structural features-especially when such features are in preferred directions and orientations .…”

Section: Morphologymentioning

confidence: 99%

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An Estimate of Eros's Porosity and Implications for Internal Structure

Wilkison

Robinson

Thomas

et al. 2002

Icarus

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Section: What Is a "Rubble Pile" Asteroid?mentioning

confidence: 88%

Section: Strength Of Rubble Pilesmentioning

confidence: 99%

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An Estimate of Eros's Porosity and Implications for Internal Structure

Wilkison

Robinson

Thomas

et al. 2002

Icarus

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“…One of the primary goals of the NEAR Shoemaker mission (Veverka et al 1997a) is to determine the internal structure of Eros, particularly whether it is a largely solid rock or is instead a "rubble pile," a collection of smaller chunks of rock loosely bound together by gravity (e.g., Veverka et al 1974, Chapman 1978, Davis et al 1979, Hartmann 1979. A study of the distinctive grooves on Phobos led to suggest that they were formed as the result of a large impact (which formed the crater Stickney) and therefore that grooves might be expected to occur on other small bodies, such as asteroids, under certain conditions.…”

Section: Introductionmentioning

confidence: 99%

Surface Expressions of Structural Features on Eros

Prockter¹,

Thomas

Robinson

et al. 2002

Icarus

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109

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“…Veverka et al 1974). This spacecraft, launched in 1971, also revealed new data on global dust storms, the tri-axial figure of Mars, the rugged gravity field and evidence for surface Aeolian activity.…”

Section: Mars During the Space Agementioning

confidence: 93%

Investigating complex organic compounds in a simulated Mars environment

Kate¹,

Ruiterkamp

Botta

et al. 2002

International Journal of Astrobiology

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The search for organic molecules and traces of life on Mars has been a major topic in planetary science for several decades. 26 years ago Viking, a mission dedicated to the search for life on Mars, detected no traces of life. The search for extinct or extant life on Mars is the future perspective of several missions to the red planet, for example Beagle 2, the lander of the Mars Express mission. In order to determine what those missions should be looking for, laboratory experiments under simulated Mars conditions are crucial. This review paper describes ongoing experiments that are being performed in support of future Mars spacecraft missions. Besides the description of the experiments, the experimental hardware and set-up, this paper also gives the scientific rationale behind those experiments. The historical background of the search for life on Mars is outlined, followed by a description of the Viking Lander biology and molecular analysis experiments and their results, as well as a summary of possible reasons why no organic compounds have been detected. A section concerning organic compounds in space and related experiments discusses the organic molecules we will use in simulation experiments. The set-up is discussed briefly in the following section. We conclude with an overview of future missions, stressing the relation between these missions and our laboratory experiments. The research described in this article has been developed as part of a Mars Express Recognized Cooperating Laboratory (RCL), and for planned future Mars missions such as the PASTEUR lander.

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A Mariner 9 atlas of the moons of Mars

Cited by 25 publications

References 11 publications

An Estimate of Eros's Porosity and Implications for Internal Structure

An Estimate of Eros's Porosity and Implications for Internal Structure

Surface Expressions of Structural Features on Eros

Investigating complex organic compounds in a simulated Mars environment

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