There is no known life on other planets except on earth.
The group of stars known as the solar system contains 8 planets and a number of other objects.
Of all the planets in the solar system, only the earth has a suitable condition for life.
In other months, for example the Galilean month in Jupiter, there may be microbiological life that begins with anaerobic organisms that are immune to radiation.
Stars are a source of energy for all forms of life outside the earth that may exist.
Temperature in space that forms the entire solar system fluctuates between -270 degrees Celsius and 15 million degrees Celsius.
Astronomers have identified other planets outside the Solar System called the extrasolar planet or planets outside the solar system.
Some types of planets outside the solar system may have better conditions for life than planets in the solar system.
Astronomers have found that the planets outside the solar system have different properties from the planets in the solar system, such as size, mass, and orbit.
Astronomers have found that planets outside the solar system have different chemical compositions from those in the solar system.
