Tiny aerosol particles in the air play a big role in regulating how much sunlight our planet absorbs or reflects, and how clouds form above us. In a recent study, researchers found that extreme heat ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

Richard Foster’s disciplined attention to spiritual formation began early on. Senior managing editor Mark Galli sat down with Foster in his home in Colorado to talk about the genesis of his lifelong ...