Only Earth and Venus has a well developed atmosphere out of the rocky planets. Note that the rocky planets are Mercury, Venus, Earth and Mars.
heiurytht
compare the atmospheres of the four inner planets
The two largest, Earth and Venus, have a mass large enough to sustain an extensive atmosphere. The other two rocky planets, Mars and Mercury, are too small to hold such an atmosphere. There is some, but it is very thin.
Yes
All the planets in our Solar System have atmospheres, except for Mercury, which only has minute traces of gases.
heiurytht
Only Earth and Venus has a well developed atmosphere out of the rocky planets. Note that the rocky planets are Mercury, Venus, Earth and Mars.
Depth of the atmosphere. Gas planets have the thickest and largest of atmospheres. Below gas planets atmospheres are pools of hydrogen or in some cases volatile ices that form in a giant ocean above the surface. It's estimated that Jupiter's rocky surface is only about the size of three Earths but the bloated atmosphere makes for most of the planet.
Mainly, they are closer to the Sun, hence the name. Also they are smaller and therefore have much thinner atmospheres, so they show their rocky exteriors, hence they are known as the rocky planets.
compare the atmospheres of the four inner planets
the inner planets (Mercury, Venus, Earth, Mars) all have rocky solid surfaces. The outer planets (Jupiter, Saturn, Uranus, Neptune) all have gaseous atmospheres and liquid surfaces. Pluto is very dense and has a rocky surface.
The two largest, Earth and Venus, have a mass large enough to sustain an extensive atmosphere. The other two rocky planets, Mars and Mercury, are too small to hold such an atmosphere. There is some, but it is very thin.
Asteroids are metallic, rocky bodies without atmospheres that orbit the Sun but are too small to be classified as planets. http://nssdc.gsfc.nasa.gov/planetary/text/asteroids.txt
A solid surface.Creation before the Frost line.Small diametersRocky crust
no
Yes
J.-P Beaulieu has written: 'Molecules in the atmospheres of extrasolar planets' -- subject(s): Atmospheres, Extrasolar planets, Congresses, Planets