[DOC] [TLE] Mercury's Atmosphere - Space.com [PAR] 3 days ago ... The solar wind blasts the closest planet to the sun, leaving it with the thinnest 
atmosphere of all the planets. ... that oxygen made up 42 percent of the tiny 
planet's atmosphere. ... The atmosphere is filled instead with sodium, magnesium
, and ... Traces of hydrogen, helium, and potassium were also detected. [DOC] [TLE] What Is The Atmosphere Like On Other Planets? - Universe Today [PAR] Jul 5, 2016 ... The Solar System's planets have varied and interesting ... variable exosphere 
that is made up of hydrogen, helium, oxygen, sodium, ... dense atmosphere, 
which is composed primarily of carbon dioxide with a small amount of nitrogen. ... 
Another common phenomena is Venus' strong winds, which reach... [DOC] [TLE] Discovering the Atmosphere on Different Planets [PAR] atmosphere; carbon dioxide; helium; hydrogen; Solar System ... In contrast, the 
gas giant atmospheres are composed mostly of hydrogen and helium. ... Mercury 
has a very thin, almost undetectable atmosphere composed of sodium and ... 
Nitrogen, argon, and small traces of oxygen and water vapor are also present. [DOC] [TLE] Extraterrestrial atmosphere - Wikipedia [PAR] Its extremely thin atmosphere mostly consists of a small amount of helium and 
traces of sodium, potassium, and oxygen. These gases derive from the solar wind
,... [DOC] [TLE] Atmosphere - Wikipedia [PAR] An atmosphere is a layer of gases surrounding a planet or other material body, 
that is held in place by the gravity of that body. An atmosphere is more likely to be 
retained if its gravity is high and the atmosphere's temperature is low. The 
atmosphere of Earth is mostly composed of nitrogen. ... Wind erosion is a 
significant factor in shaping the terrain of rocky planets with... [DOC] [TLE] Thin Atmosphere of Mercury, Formation and Composition - Windows ... [PAR] Aug 11, 2010 ... Mercury's thin atmosphere contains hydrogen, helium, and oxygen. It also has ... 
Some of the gas particles come from the solar wind. Others are... [DOC] [TLE] The Sun and Stellar Structure - Astronomy Notes [PAR] Aug 18, 2011 ... The small terrestrial planets and tiny Pluto are in the box---the Earth is the ... of 
the solar material, helium makes up about 6% of the Sun, and all the other ... 
carbon, and nitrogen the three most abundant ``metals''---they make up 0.11%). 
... The Sun also has traces of neon, sodium, magnesium, aluminum,... [DOC] [TLE] Exploring the Solar System - The Federation of Galaxy Explorers [PAR] The solar system consists of an average star we call the sun, the planets Mercury, 
... possibly to the solar winds. Mercury's atmosphere is very thin and is composed 
of helium and ... Earth and most of the other planets turn counterclockwise, from 
... Because Venus has such a thick layer of clouds, many people thought it must... [DOC] [TLE] Planetary Atmospheres [PAR] As with Jupiter's Europa, the atmosphere of Ganymede is made up of oxygen, 
formed ... Such creatures would most likely be small and not particularly far on 
the .... an atmosphere. earth's moon atmospheric composition: helium, sodium, 
argon ... of hydrogen and helium, and is composed of atoms captured from solar 
wind. [DOC] [TLE] MESSENGER Settles Old Debates and Makes New Discoveries at ... [PAR] Jul 3, 2008 ... The tiny craft probed the composition of Mercury's thin atmosphere, sampled ... 
Others thought that Mercury's plains material came from erupted lavas, but the ... 
shields the planet surface from the charged particles of the solar wind. ... "Atoms 
of hydrogen, helium, sodium, potassium, and calcium have been... [DOC] [TLE] The Sun Basic Info A medium sized star at the center of our solar ... [PAR] Mostly Hydrogen and Helium; Processes in the sun fuse light elements into ... the 
solar wind that sweeps charged particles to the edge of the solar system ... Of all 
the planets, Mercury has the greatest Temperature Range between night and day
! ... Extremely thin atmosphere- very small amounts of Sodium (Na) and other

Question: This tiny planet's thin atmosphere is mostly composed of helium & sodium thought to come from the solar wind
Answer: Mercury