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I think you mean extrasolar planets. Technically, all planets except Earth are "extraterrestrial." At last report there were almost 900 of them, with more to follow. They aren't a "group" in the usual sense, just a category.

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12y ago

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Which group of planets is known as the terrestrial planets?

The group of planets known as the terrestrial planets includes Mercury, Venus, Earth, and Mars. These planets are closer to the Sun and have solid, rocky surfaces.


What are the planets closet to the sun called?

extraterrestrial...? wait, sorry, it's 'inferior planets'.


Why do we believe in the existence of extraterrestrial life?

We believe in the existence of extraterrestrial life because of the vastness of the universe, the discovery of planets in habitable zones, and the possibility of similar conditions to Earth on other planets.


What is the meaning of extraterrestrial?

Extraterrestrial are unknown humans. They are humans, but different kinds from different planets. Like aliens and UFOs. The scientific community think this is true. They think they come from planets beyond Earth...


Which group of planets are the hottest?

The four inner, or rocky planets, sometimes known as the terrestrial planets. These are closer to the sun and are hotter.


What do exobiologists search for in the solar system?

They search for extraterrestrial life on other planets.


What extraterrestrial planets are called twins?

Earth and Venus are nearly the same size.


Is there life is exist on any other planets?

At this time we have no evidence of any extraterrestrial life.


What does extarterrestial life mean?

Extraterrestrial life is defined as life that does not originate from Earth. Life on other planets is a simpler way to word it. Aliens on other planets is an example (but I doubt aliens live on other planets) of extraterrestrial life. Also, bacteria are another example. There is proof that there was once water on Mars, and that there may have been bacteria living in that water. That bacteria would also be considered as extraterrestrial.


Are extraterrestrial organisms existing?

Nope. Unless exobiology is correct, in which case we're all extraterrestrial. no


Which of the following are the best candidates to search for planets that might harbor extraterrestrial life?

Planets located in the habitable zone of their star (where liquid water can exist), planets with rocky compositions, planets orbiting stable stars, and planets with atmospheres that could support life would be the best candidates to search for extraterrestrial life.


Who are ASG?

Andromeda Survival Group, extraterrestrial civilization in Andromeda Galaxy.