With a global ocean of liquid water below a thick crust of ice, Saturn’s moon Enceladus is one of the most promising places to search for life beyond Earth. A new study suggests the moon itself may aid in that search by making some ocean compounds easier for future spacecraft...

John Martin Fischer, a leading philosopher of free will and moral responsibility, has written two companion essays exploring the ideas of mindfulness and living in the moment, which are often encapsulated in the phrase: “Be here now.” In the first piece, published by Aeon, Fischer sorts through various theories regarding...