Currently there are 353 known extrasolar planets (that is to say, outside of our solar system), but it is unknown how many planets exist in the universe.
Basic science is simply science that is easy and uncomplicated. An example of this can be the names of the planets.
A basic, simplified answer is: The inner planets are mainly rock with iron cores. The outer planets are mostly gas, or liquefied gases.
hydrogen, nitrogen, oxygen, h2o,
A basic, simplified answer is: The inner planets are mainly rock with iron cores. The outer planets are mostly gas, or liquefied gases.
the gas giants and the outer planents
This is a very basic answer, but maybe it's what you're looking for. The inner planets are rocky, have no rings, and are smaller. The outer planets are large, gaseous, and have rings.
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The inner planets are called, "Terran" planets after the Latin name for Earth: 'Terra'. The outer planets are called, "Jovian" planets after the name Jupiter. Jupiter??? Yeah, the Greek God Jupiter was called, "Jove" in Latin, hence 'Jovian'.
there is 7 new planets
Basic information regarding the planets reveals that the solar system is approximately 5,000,000,000 years old. The information. Also suggests the planets are made up of smaller rocks and dust.
Rock. Their basic structure is probably similar to that of the Earth.
There are eight planets.