Extragalactic planet Extragalactic planet An extragalactic planet, also known as an extragalactic exoplanet, is a star-bound planet, or rogue planet, located outside of the Milky Way galaxy. Due to the huge distances to such worlds, they would be very hard to detect directly. However, indirect evidence suggests that such planets may exist. Nonetheless, the most distant known planets are SWEEPS-11 and SWEEPS-04, located in Sagittarius, approximately 27,710 light-years from the Sun, while the Milky Way is between 100,000–180,000 light years in diameter. This means that even galactic planets located further than that distance have not been detected. A planet with a mass
The Post Card: From Socrates to Freud and Beyond The Post Card: From Socrates to Freud and Beyond The Post Card: From Socrates to Freud and Beyond () is a 1980 book by French philosopher Jacques Derrida. It is a "satire of epistolary literature." After "Glas" (1974), it is sometimes considered Derrida's most "literary" book, and continues the critical engagement with psychoanalysis first signaled in "Freud and the Scene of Writing" from Derrida's "Writing and Difference" (1967). The first half of the book, titled "Envois" (sendings), contains a series of love letters addressed by Derrida to an unnamed loved one. In one of the letters, dated 6 June 1977,