Explanation:

NASA’s Cassini spacecraft has detected an unusually high concentration of methane, along with carbon dioxide and dihydrogen, in the moons of Saturn by flying through their plumes. The spacecraft has found that Titan has methane in its atmosphere and Enceladus has a liquid ocean with erupting plumes of gas and water.

• Saturn has 82 moons with confirmed orbits that are not embedded in its rings.

Particularly notable among Saturn's moons are

• Titan, the second-largest moon in the Solar System (after Jupiter's Ganymede), with a nitrogen-rich Earth-like atmosphere and a landscape featuring dry river networks and hydrocarbon lakes,
• Enceladus, which emits jets of gas and dust from its south-polar region, and
• Iapetus, with its contrasting black and white hemispheres.
• Most of the methane on Earth has a biological origin.

Microorganisms called methanogens are capable of generating methane as a metabolic byproduct.

• They do not require oxygen to live and are widely distributed in nature. They are found in swamps, dead organic matter, and even in the human gut.
• They are known to survive in high temperatures and simulation studies have shown that they can live in Martian conditions. Methanogens have been widely studied to understand if they can be a contributor to global warming.

Hence both statements are correct.