The planet Mercury is composed of rock. Its close proximity to the sun prevents any kind of gaseous atmosphere from forming.
Yes
Because, like Earth, Venus, and Mars, it is largely composed of rock. The giant outer planets: Jupiter, Saturn, Uranus and Neptune are largely composed of gases.
pluto's atmoshpere
Mercury has a very thin atmosphere composed mostly of Helium and Hydrogen with trace amounts of Oxygen.
The Jovian planets (Jupiter, Saturn, Uranus and Neptune) are composed of gases and pressurized liquids. Whereas, the four inner terrestrial planets (Mercury, Venus, Earth and Mars) are composed of rock and iron.
The Jovian planets (Jupiter, Saturn, Uranus and Neptune) are composed of gases and pressurized liquids. Whereas, the four inner terrestrial planets (Mercury, Venus, Earth and Mars) are composed of rock and iron.
The Comets.
comets!
No. An asteroid is composed of rock and/or metal and usually has an irregular shape.
The Comets.
The Jovian planets (Jupiter, Saturn, Uranus and Neptune) are composed of gases and pressurized liquids. Whereas, the four terrestrial planets (Mercury, Venus, Earth and Mars) are composed of rock and iron.
comets