[DOC] [TLE] J! Archive - Show #5438, aired 2008-04-09 [PAR] (Alex: We'll give you the song, you identify the motion picture.) .... In 1991 radar 
images hinted that there was ice at the north pole of this inner... [DOC] [TLE] Free Flashcards about GENERAL SCIENCE - StudyStack [PAR] THIS OUTER PLANET DISCOVERED BY HERSCHEL HAS A 98-DEGREE .... 
THE NORTH POLE ON A BAR MAGNET WILL ATTRACT THIS POLE ON 
ANOTHER BAR MAGNET, SOUTH POLE ..... IN 1991 RADAR IMAGES HINTED 
THAT THERE WAS ICE AT THE NORTH POLE OF THIS INNER PLANET, 
MERCURY. [DOC] [TLE] MESSENGER Finds New Evidence for Water Ice at Mercury's Poles [PAR] Nov 29, 2012 ... A radar image of Mercury's north polar region acquired by the Arecibo 
Observatory. ... Scientists suggested decades ago that there might be water ice 
and other ... The idea received a boost in 1991, when the Arecibo radio telescope 
in ... the same objects that likely delivered water to the innermost planet. [DOC] [TLE] Ice on Mercury - nssdc - NASA [PAR] Nov 27, 2012 ... The closest planet to the Sun has temperatures which can reach over 700 K. The 
... Nonetheless, Earth-based radar imaging of Mercury has revealed areas of 
high radar reflectivity near the north and south poles, which could be ... There 
appear to be dozens of these areas with generally circular shapes. [DOC] [TLE] Water Ice and Organics Found at Mercury's North Pole - Universe ... [PAR] A radar image of Mercury's north polar region is shown superposed on a mosaic 
... and since then scientists have postulated that water ice could be hiding there 
in ... story of how water ice has been delivered to the inner planets by comets and
... [DOC] [TLE] Mercury's Polar Ice Defies the Odds - Sky & Telescope [PAR] Nov 29, 2012 ... In late 1991, I first got word that a team of astronomers had used one of NASA's 
big ... To their complete surprise, the planet's north pole veritably lit up like a 
beacon. ... In this radar image of Mercurys north polar region, yellow areas 
denote ... The innermost planet is so powerfully locked in the Sun's... [DOC] [TLE] Arecibo Radar Astronomy - Arecibo Observatory [PAR] Nov 9, 1997 ... Inner Solar System ... Comparison between these radar images and Mariner-10 
... The north polar image consists of a score of small to medium size spots; ... The 
discovery of ice at the poles of Mercury triggered a search for ice in ... While there 
were hints from measurements of the spectra of reflected radar... [DOC] [TLE] Mercury - Views of the Solar System [PAR] It is the closest planet to the Sun, and second smallest planet in the solar system. 
... and Dyce determined Mercury's period of rotation to be 59 +- 5 days based 
upon radar ... The pictures returned from the Mariner 10 spacecraft showed a 
world that ... The apparent brightening at the north pole could be explained by ice 
on or... [DOC] [TLE] MESSENGER and the Revival of Planet Mercury | Owlcation [PAR] Oct 11, 2016 ... Mercury is not only the first planet in the solar system but the least ... no other 
space probes had visited Mercury, our innermost planet. ..... On top of this, radar 
bounces found by the Arecibo radio telescope in 1991 looked like .... 
MESSENGER Provides First Optical Images of Ice Near Mercury's North Pole. [DOC] [TLE] Arecibo Radar Astronomy [PAR] May 15, 1996 ... Inner Solar System ... The north polar image consists of a score of small to 
medium size ... The discovery of ice at the poles of Mercury triggered a search for 
ice ... While there were hints from measurements of the spectra of reflected radar 
.... imaging of Mercury initiated at Goldstone/VLA and Arecibo in 1991... [DOC] [TLE] June 16 press conference - Messenger - The Johns Hopkins ... [PAR] Jun 16, 2011 ... He received a B.A. in Physics from Cornell University in 1991 and a ... on 
determining the chemical composition of the planet Mercury. ... The Magellan 
mission produced global radar image and altimetric maps of the surface of Venus
. ... MESSENGER is currently filling in coverage of Mercury's

Question: In 1991 radar images hinted that there was ice at the north pole of this inner planet
Answer: Mercury