In our solar system, the Earth is clearly in the Goldilocks zone with much of its surface covered by liquid water. Venus is too hot, Mars too cold, and Earth is just right.

NORFOLK, Va. — Earth is the only planet in our solar system that is capable of sustaining human life, and this is why. The sun is the star at the center of our solar system. Every star has a ...

"Consider a hypothetical solar system where all the planets reside within the star's habitable zone, potentially supporting life." Judge orders White House to restore Associated Press’s access ...

One of the most exciting topics in astronomy today is the search for exoplanets, or planets beyond our solar system. We’ve found over 5,000 exoplanets to date, with more being discovered every year.

NASA image of a solar system's habitable zone. NASA "In other words, the orbits would produce crazy climates on those planets," Kane said. "This paper is really a warning, when we find planets in ...

An artist's interpretation of TOI 4633 c. This Neptune-like exoplanet was found orbiting the habitable zone of a sunlike star, which also has another star companion in the system.

If this theoretical second planet in the system is confirmed, it would become the smallest habitable-zone planet discovered by TESS, NASA's exoplanet-detecting satellite.