EntityQ1682994· pop 18· linked from 6 articlesJanssenSign in to saveJanssen may refer to:Article3 sectionsContentsAstronomyOtherSee alsoJanssen may refer to:== Astronomy == Janssen (lunar crater) Janssen (Martian crater) Janssen (planet), an exoplanet also known as 55 Cancri eRead full article (4 paragraphs)ConnectionsJanssen PharmaceuticaEntityAd26.COV2.SEntity