Results 231 to 240 of about 25,419 (252)
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Science, 2007
BEIJING With two successful crewed space flights under its belt and a moon mission on tap for later this year, China has announced plans for its first voyage to another planetwith Russia as its partner.
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BEIJING With two successful crewed space flights under its belt and a moon mission on tap for later this year, China has announced plans for its first voyage to another planetwith Russia as its partner.
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Advances in Space Research, 1986
Abstract There is evidence of a strong influence of an atmospheric (cometary) interaction on the Martian tail formation: small total magnetic flux in the tail, the existence of plasma flow of apparently planetary origin, interplanetary magnetic field control of magnetic field orientation in the tail and other evidence.
O. L. Vaisberg, V. N. Smirnov
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Abstract There is evidence of a strong influence of an atmospheric (cometary) interaction on the Martian tail formation: small total magnetic flux in the tail, the existence of plasma flow of apparently planetary origin, interplanetary magnetic field control of magnetic field orientation in the tail and other evidence.
O. L. Vaisberg, V. N. Smirnov
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Journal of Geophysical Research: Space Physics, 1981
The changing sky brightness during the Martian twilight as measured by the Viking lander cameras is shown to be consistent with data obtained from sky brightness measurements. An exponential distribution of dust with a scale height of 10 km, equal to the atmospheric scale height, is consistent with the shape of the light curve.
James B. Pollack +2 more
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The changing sky brightness during the Martian twilight as measured by the Viking lander cameras is shown to be consistent with data obtained from sky brightness measurements. An exponential distribution of dust with a scale height of 10 km, equal to the atmospheric scale height, is consistent with the shape of the light curve.
James B. Pollack +2 more
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2006
Aurora have been observed for the first time (in 2004) at Mars by the UV spectrograph SPICAM aboard Mars Express. This result was published in Bertaux et al. (Nature, 435,790,2005). What was observed is a significant increase of the signal for 7 seconds. The spectrum contains some features typical of a dayside spectrum: CO2+ and CO bands and O line. In
Witasse, Olivier +8 more
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Aurora have been observed for the first time (in 2004) at Mars by the UV spectrograph SPICAM aboard Mars Express. This result was published in Bertaux et al. (Nature, 435,790,2005). What was observed is a significant increase of the signal for 7 seconds. The spectrum contains some features typical of a dayside spectrum: CO2+ and CO bands and O line. In
Witasse, Olivier +8 more
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Science, 2001
Memoirs A Twentieth-Century Journey in Science and Politics. Edward Teller with Judy Shoolery. Perseus, Cambridge, MA, 2001. 640 pp. $35, C$52.95. ISBN 0-7382-0532-X. One of the most influential and most controversial scientists of the just-concluded century offers a personal perspective on his life, his ...
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Memoirs A Twentieth-Century Journey in Science and Politics. Edward Teller with Judy Shoolery. Perseus, Cambridge, MA, 2001. 640 pp. $35, C$52.95. ISBN 0-7382-0532-X. One of the most influential and most controversial scientists of the just-concluded century offers a personal perspective on his life, his ...
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No ‘nanofossils’ in martian meteorite
Nature, 1997Elongated, segmented forms found on fracture surfaces within the martian meteorite ALH84001 have been proposed to be martian ‘nanofossils’1, even though they appear too small to be fossilized bacteria2,3,4. We have examined similar forms and find that the majority are (non-biological) lamellar growth steps on pyroxene and carbonate crystals.
Hojatollah Vali +5 more
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Monthly Review, 1997
Review of Red Mars, Green Mars, and Blue Mars by Kim Stanley Robinson. This article can also be found at the Monthly Review website , where most recent articles are published in full. Click here to purchase a PDF version of this article at the Monthly Review website.
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Review of Red Mars, Green Mars, and Blue Mars by Kim Stanley Robinson. This article can also be found at the Monthly Review website , where most recent articles are published in full. Click here to purchase a PDF version of this article at the Monthly Review website.
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2012
Phobos and Deimos, the two satellites of Mars, are potato-shaped city-sized lumps of rock orbiting in near-circular paths almost directly above the Martian equator. Both moons are made of very dark material and display cratering. Because of their low surface brightness and composition it was once widely considered that both Phobos and Deimos were ...
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Phobos and Deimos, the two satellites of Mars, are potato-shaped city-sized lumps of rock orbiting in near-circular paths almost directly above the Martian equator. Both moons are made of very dark material and display cratering. Because of their low surface brightness and composition it was once widely considered that both Phobos and Deimos were ...
openaire +2 more sources