Results 171 to 180 of about 25,282 (206)

Experimental and numerical investigation on Martian atmosphere entry

39th Aerospace Sciences Meeting and Exhibit, 2001
A numerical and experimental investigation was performed to study the aerothermodynamic problems of entry into the Martian atmosphere. The mathematical and physical model used to study the flowfield around a capsule entering a CO 2 environment is described. Computational fluid dynamics tools have been applied to solve the system of governing equations.
PATERNA D., MONTI R., SAVINO, RAFFAELE, ESPOSITO A.   +3 more
openaire   +2 more sources

Sun Imaging though the Martian Atmosphere

2008 IEEE Aerospace Conference, 2008
This paper discusses the sun images acquired with the panoramic cameras (pancam) on the Mars exploration rovers. The mission goals, the camera design, the data processing and the results are discussed. Each of the two rovers has two cameras, one with a bandpass filter centered at 880 nm and one centered at 440 nm.
Carl Christian Liebe, James W. Alexander, Larry Scherr   +2 more
openaire   +1 more source

Clues to the Martian Atmosphere

Science, 2001
Some 30 years ago, it was discovered that the main constituent of the thin martian atmosphere is carbon dioxide (CO) but that it only contained trace amounts of carbon monoxide and molecular oxygen, the photodissociation products of CO. Chemical reaction cycles involving water and hydrogen species have been developed to explain these observations, but ...
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Atmospheric effects on Martian Ejecta Emplacement

Journal of Geophysical Research: Solid Earth, 1979
Analytical descriptions of crater growth and numerical calculations of aerodynamic drag have been combined to evaluate the possible effects of drag on impact crater ejecta emplacement on Mars. Below a critical particle size, ejecta deposition is severely restricted in range.
Peter H. Schultz, Donald E. Gault
openaire   +1 more source

Photochemistry of the Martian Atmosphere

1986
A problem and ways to solve it. Consider a problem of the calculation of ionospheric composition with the neutral upper atmospheric composition being known.
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Physical parameters of the martian atmosphere

Earth, Moon, and Planets, 1989
The following physical parameters have been computed from 0 to 200 km altitude; (1) pressure, (2) density (3), speed of sound, (4) density, (5) number density, (6) mean free path, (7) viscosity, (8) pressure scale, (9) mean particle velocity, (10) collisional frequency and (11) columnar mass.
Basil Petropoulos, Constantin Macris
openaire   +1 more source

Making oxygen from the Martian atmosphere 

Aether, 2022
The possibility of a manned mission to Mars is gaining traction. But how do you create the oxygen necessary for the astronauts to remain on the planet and, more importantly, how do you develop the rocket fuel necessary to bring them back? MOXIE is the answer.
openaire   +1 more source

Change in the Martian Atmosphere

1999
There are several lines of evidence that the atmosphere of Mars has significantly evolved over the history of the planet. Because Mars does not have a strong intrinsic magnetic field, the atmosphere is eroded by interactions with the solar wind. Conditions in the early solar-system significantly enhanced this loss, notably the component due to solar ...
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Martian Atmosphere Boundary Layer Code

26th Thermophysics Conference, 1991
HARTMUT LEGNER, JAMES BAKER, PHILIP MULHALL, JOHN CRONIN   +3 more
openaire   +1 more source