Science writers and news media are invited to a talk at next week’s American Geophysical Union fall meeting to learn about what causes change in the Sun’s powerful activity, from flares that ...

Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home.

How Did the Solar System Form? The tale of our sun may begin with another star: a predecessor whose fiery death brought about the birth of our solar system.