SOLAR SYSTEM

Detailed explanation-1: -Earth is the only planet known so far that sustains life.

Detailed explanation-2: -Earth is the only planet in the universe known to possess life. The planet boasts several million described species, living in habitats ranging from the bottom of the deepest ocean to a few miles up into the atmosphere. Researchers think far more species remain that have yet to be described to science.

Detailed explanation-3: -Kepler-452b has been in Kepler-452’s habitable zone for most of its existence, a duration just over six billion years. From the surface of Kepler-452b, its star would look almost identical to the Sun as viewed from the Earth.

Detailed explanation-4: -What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.

Detailed explanation-5: -To date, no proof of past or present life has been found on Mars. Cumulative evidence suggests that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms, but habitable conditions do not necessarily indicate life.