[DOC] [TLE] J! Archive - Show #3686, aired 2000-09-18 [PAR] An archive of clues and players for Jeopardy! show #3686. ... Tests show the 
planet Mercury has a thin one containing helium & sodium... [DOC] [TLE] Inner Planets Flashcards | Quizlet [PAR] 1. The surface temperature of Mercury ranges from 100k to 700k. 2. Mercury has 
a ... It contains hydrogen, sodium, helium, oxygen, calcium, potassium, and also 
water vapor. 3. ... It is technically a ball of iron with a thin silicate crust. ... but there 
are hints that show that due to faults on that planet there have been movement in
... [DOC] [TLE] Mercury's Atmosphere - Space.com [PAR] 6 days ago ... The solar wind blasts the closest planet to the sun, leaving it with the ... Of all the 
planets in the solar system, Mercury has the thinnest atmosphere, thinner than 
even Mars. ... The atmosphere is filled instead with sodium, magnesium, and ... 
Traces of hydrogen, helium, and potassium were also detected. [DOC] [TLE] Atmosphere of Mercury - Universe Today [PAR] Not the kind of atmosphere that we have here on Earth, or even the thin ... 
Mercury's original atmosphere dissipated shortly after the planet formed 4.6 
billion years ago ... It has a tenuous atmosphere made up of hydrogen, helium, 
oxygen, sodium, ... The atmosphere of Mercury is one of the most tenuous in the 
Solar System. [DOC] [TLE] Mercury Orbit Insertion - NASA [PAR] Mar 17, 2011 ... Mercury, and the forces that have shaped ... MESSENGER  Mercury, the Last 
Frontier of the Terrestrial Planets ... orbit insertion as well as opportunities to test 
scientific operations and ..... Primary mission at Mercury: Orbit for one Earth year (
equivalent to ..... Mercury's extremely thin atmosphere contains. [DOC] [TLE] MESSENGER readies for orbit insertion - Astronomy Now [PAR] Mar 17, 2011 ... Earthshine used to test life detection method ... MESSENGER enters orbit around 
Mercury ... has become the first to ever enter orbit around innermost planet 
Mercury ... Throughout its one year nominal science mission, MESSENGER ... a 
thin envelope of gas  an exosphere  containing hydrogen, helium,... [DOC] [TLE] Designing Curriculum and Instruction in Elementary School ... [PAR] The job is to prepare one or more lessons on astronomygrades 3-5. .... Use 
synonyms and examples when a verbal definition would contain words that are ... 
A comet is an icy small solar system body (genus) that sometimes has a thin, .... (
4) Test. Jupiter is farther from the sun than Earth. Which planet has a larger orbit
? [DOC] [TLE] Argon - Wikipedia [PAR] Argon is a chemical element with symbol Ar and atomic number 18. It is in group 
18 of the ... Argon has approximately the same solubility in water as oxygen, and 
is 2.5 ... The Earth's crust and seawater contain 1.2 ppm and 0.45 ppm of argon, 
... of the planet Mercury in 1973 found that Mercury has a very thin atmosphere... [DOC] [TLE] Mercury (Planet) facts, information, pictures | Encyclopedia.com ... [PAR] Mercury has the most elliptical and inclined (7 degrees) orbit of any planet except 
... This means that Mercury contains a much larger fraction of iron than any other 
planet or ... Mariner 10 identified the presence of hydrogen, helium, and oxygen 
in the ... Both sodium and potassium show day-to-day changes in their global... [DOC] [TLE] Mercury (planet) - New World Encyclopedia [PAR] Mercury is one of the four terrestrial planets, meaning that like the Earth, it is a ... 
are aimed at making observations that will allow these theories to be tested. ... 
within Mercury's crust is another source of helium, as well as sodium and 
potassium. ... After one orbit, Mercury has rotated 1.5 times, so after two complete 
orbits the... [DOC] [TLE] Mercury | Metaplanets [PAR] Mercury is one of four terrestrial planets in the Solar System, and is a rocky body 
like the Earth. ... Recent research strongly suggests Mercury has a molten core. ... 
MESSENGER and BepiColombo, both aim

Question: Tests show the planet Mercury has a thin one containing helium & sodium
Answer: Atmosphere