Build Your Very Own World

Atmosphere and Climate

Describe the Atmosphere:

Start by considering if the planet is made up of gases like oxygen and nitrogen, or with other gases not found on Earth. Humans need oxygen to survive, but if your planet is not going to be populated with humans, your planet may not need oxygen at all. Your planet may be made up of one gas that requires special equipment to breath in, or several gases that mirror the atmospheric make up of Earth.

You may want to consider if you are trying to create a believable or realistic planet where humans can survive or if you are going for the fictional effect and not worrying about plausibility at all. You may end up creating an atmosphere for the planet that is similar to Earth so your reader is more likely to believe human life can survive on the planet.

You should also think about how the atmosphere appears on the planet. Is the atmosphere foggy and thick with white gases or does it have patches of poisonous gases that appear green or blue? Maybe sections of your planet contain different atmospheres, leading to a wide range of gases and elements on the planet.

Note the Climate of the Planet:

You should also have a good idea of the climate or climates on the fictional planet. Consider if the planet has a variety of climates based on location or one overall climate.

Maybe the planet consists mostly of ice and it is always winter on the planet, with temperatures below zero. Or, perhaps there are areas of the planets that are tropical, with hot, humid temperatures and areas of the planet that are dry and arid.