NASA has discovered an Earth-sized planet orbiting in the habitable zone of its star.

Scientists have discovered a world that is likely rocky and 95% of the size of Earth. The planet, called  TOI 700 e, is orbiting around a star and could have liquid water on it, NASA says.

This is the fourth planet discovered in the TOI 700 system — the other planets are named TOI 700 b, c, and d — which is 100 light-years away. TOI 700 is a star the planets orbit around, but only d and e orbit in the "habitable zone."

A habitable zone, also known as "Goldilocks zone," is an area that is just the right distance from a star where water can exist on a planet's surface and the conditions are neither too hot nor too cold for life.

Source: www.cbsnews.com

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