Stars live for a long time, with even the most massive stars having lifetimes measured in millions of years. But, for a mere few thousand years toward the end of their lives, some massive stars go ...

A simple diagram, which celebrates its centennial this year, continues to serve as the most essential conceptual tool in stellar astrophysics Modern astronomy paints a vivid picture of the universe ...

IT has been suggested several times 1 that the flare activity observed in flash and U V Ceti stars is of a nature similar to that of solar flares. In this communication I shall adhere to this point of ...