What are atmospheres of exoplanets?

An atmosphere is like a blanket around a planet, it’s what you feel when you breathe or when you wear a jacket on a chilly day.

Imagine Earth has a big, fluffy coat that lets us breathe and keeps the planet from getting too hot or too cold. Exoplanets are planets outside our solar system, and some of them also have atmospheres, their own cozy blankets made of gases like air, water vapor, or even clouds of methane.

Some exoplanet atmospheres might be mostly carbon dioxide, like a greenhouse that traps heat. Others could be thick with hydrogen and helium, like the gas giants in our solar system. If you could touch one, it might feel like stepping into a bubble bath, soft and full of strange gases.

By studying these atmospheres, scientists can guess if there’s water or even life on those faraway planets. It's like looking at the weather forecast for another world! An atmosphere is like a blanket around a planet, it’s what you feel when you breathe or when you wear a jacket on a chilly day.

Imagine Earth has a big, fluffy coat that lets us breathe and keeps the planet from getting too hot or too cold. Exoplanets are planets outside our solar system, and some of them also have atmospheres, their own cozy blankets made of gases like air, water vapor, or even clouds of methane.