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2007-07-24 13:49:04 · 12 answers · asked by ? 5 in Science & Mathematics Astronomy & Space

12 answers

most planets have some kind of ice in them, if you are talking about frozen water (H2O) then,

Mercury, Earth, Mars, Pluto

and a lot of moons too...

and Saturn's Ring

2007-07-24 15:13:19 · answer #1 · answered by Anonymous · 0 0

the only planet that i know of (meaning theres probably others) is mercury because i did a science project on it a while back, there are two extreme seasons, if you will, on mercury including extreme highs that could be in the 800's F or down where the ice caps are at the bottom with temperatures as low as -180F, neptune may also have ice because of the fact that the sun heats the planet 900 times less than earth

2007-07-24 13:57:50 · answer #2 · answered by kkz2490 1 · 0 0

Ice has a slightly different meaning when talking about planets, it doesn't necessarily mean solid water, but can also refer to light molecules in solid form (methane, carbon dioxide).

That being said, I know Earth has ice (H2O) and I think Mars has trace amounts of it at the poles, though this is mostly dry ice (CO2).

Pluto is no longer classified as a planet as of 2006, so argue that Pluto does not fit onto this list.

2007-07-24 17:42:48 · answer #3 · answered by Anonymous · 0 0

Earth and Mars. Inside of Earth, the planets are too hot. Outside of Mars, the planets are gaseous. There is ice on the Jovian moon Io. And, if you qualify Pluto as a planet, there may be ice on it, too.

2007-07-24 13:58:35 · answer #4 · answered by Paul in San Diego 7 · 0 0

Mercury would seem to be one of the least likely places in the solar system to find ice. The closest planet to the Sun has temperatures which can reach over 700 K. The local day on the surface of Mercury is 176 earth-days, so the surface is slowly rotating under a relentless assault from the Sun. Nonetheless, Earth-based radar imaging of Mercury has revealed areas of high radar reflectivity near the north and south poles, which could be indicative of the presence of ice in these regions (1-3). There appear to be dozens of these areas with generally circular shapes. Presumably, the ice is located within permanently shadowed craters near the poles, where it may be cold enough for ice to exist over long periods of time. The discovery of ice on the Earth's moon can only serve to strengthen the arguments for ice on Mercury.

Investigations of Mercury were done from Earth using the Arecibo radio telescope, the Goldstone antenna, and the Very Large Array (VLA). The Goldstone/VLA study (1) used the NASA Deep Space Network 70-m Goldstone dish antenna to transmit 8.51 GHz, 460 kW, right circularly polarized radar waves towards Mercury. The reflections were received by the National Radio Astronomy Observatories 26 VLA antennas. Calibration and processing of the radar returns showed radar-bright (high radar reflectivity) with depolarized signatures at the north pole. The Arecibo observations (2,3) were made by transmitting an S-band (2.4 GHz), 420-kW, circularly polarized coded radar wave at Mercury. The wave reflects off Mercury back to Earth. The wave is both transmitted and received by the Arecibo radio telescope. Filtering and processing the return signal gives a radar reflectivity map of Mercury's surface with a resolution of approximately 15 km. About 20 anomalously reflective and highly depolarized features were observed at the north and south poles.




and mars....

May 28, 2002: Using instruments on NASA's 2001 Mars Odyssey spacecraft, surprised scientists have found enormous quantities of buried treasure lying just under the surface of Mars -- enough water ice to fill Lake Michigan twice over. And that may be only the tip of the iceberg.
what they have have found is much more ice than they ever expected."

2007-07-24 13:55:51 · answer #5 · answered by -pia- 1 · 0 0

Mars:

http://www.adlerplanetarium.org/cyberspace/planets/mars/images/mars_polar_seasons.jpg

.

2007-07-24 14:20:24 · answer #6 · answered by Anonymous · 0 0

Pluto

2007-07-24 13:51:28 · answer #7 · answered by Dougs 1 · 0 0

Mars and, if you counted it as a planet, Pluto.

2007-07-24 13:53:29 · answer #8 · answered by aximili12hp 4 · 0 0

the planet dinglehopper 4578, sector 12, reign of king george the 357th, in the galaxy marsotopiatropolis, i know it sounds crazy but it is one of those crazy far away galaxies that the scientists pretend exist

2007-07-24 13:58:16 · answer #9 · answered by Anonymous · 0 1

earth has ice on it. :)

ice giants' (Uranus and Neptune), which have icy mantles around their cores and only a thin outermost gas layer.

2007-07-24 15:11:59 · answer #10 · answered by chimebear 4 · 0 0

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