火か星せいかせいCommon word›JLPTN1›Freq.FrequencyTop 10,000じ字FuriganaMeanings1nounMars (planet)astronomy›The planet Mars. Used in astronomical contexts and everyday conversation.火か星せいは地ち球きゅうの隣となりの惑わく星せいです。Mars is the planet next to Earth.将しょう来らい、人にん間げんは火か星せいに住すめるようになるかもしれない。In the future, humans may be able to live on Mars.