meteor
Gravity is the force that keeps an atmosphere in place, surrounding a planet. Since there is no actual roof or container holding in the atmosphere, gas can always leak away into outer space, if it is not held in place by gravity. So the stronger the gravitational force, the more atmosphere can be retained. Large planets have a lot of hydrogen in their atmosphere, but hydrogen leaks away from smaller planets. Large planets attracted more gas when they were originally formed, as well. Remember that the solar system itself, and everything in it, originally condensed out of an interstellar cloud of gas and dust.
yes the inner planets are much smaller then the outer planets
Yes, the word 'planets' is a noun, the plural form of the noun planet. The noun planets is a word for two or more celestial bodies, smaller than a star but larger than an asteroid, that does not produce its own light but is illuminated by light from the star around which it revolves. The noun planet is a word for a thing.
Mass does not change with gravity. Weight increases on BIGGER planets and decreases on smaller planets.
The planets are smaller than the sun.
Mercury, but only by volume as Titan has a gaseous atmosphere.
The relative size of the gaseous atmosphere - mostly due to the amount of hydrogen in that atmosphere.
Asteroids are objects smaller then planets that orbit the Sun. Meteorites are (usually) smaller objects that enter the atmosphere and reach the ground.
Gravity is the force that keeps an atmosphere in place, surrounding a planet. Since there is no actual roof or container holding in the atmosphere, gas can always leak away into outer space, if it is not held in place by gravity. So the stronger the gravitational force, the more atmosphere can be retained. Large planets have a lot of hydrogen in their atmosphere, but hydrogen leaks away from smaller planets. Large planets attracted more gas when they were originally formed, as well. Remember that the solar system itself, and everything in it, originally condensed out of an interstellar cloud of gas and dust.
yes the inner planets are much smaller then the outer planets
smaller
An asteroid is a rock that is far smaller than a planet or dwarf planet. They have no atmosphere. They may circle a sun or a planet.
Yes, the word 'planets' is a noun, the plural form of the noun planet. The noun planets is a word for two or more celestial bodies, smaller than a star but larger than an asteroid, that does not produce its own light but is illuminated by light from the star around which it revolves. The noun planet is a word for a thing.
No. All of the objects in out solar system labeled as dwarf planets are smaller than the smallest of the planets. The gas planets are the largest planets.
are asteroids smaller or larger than planets
Satellites are objects placed in orbit by human enterprise. Moons are natural satellites because they orbit planets or other smaller celestial bodies, but are formed in some way out side our control. IE: collisions, captured dwarf planets, or created out of the same Protoplanetary Disk as it's primary.
Objects that are smaller than planets are called "dwarf planets"; even smaller objects are called "asteroids".