Prehistoric cave dwellers adorned their homes with drawings of the Sun, stars, and planetary bodies of the Solar System, so it is safe to say that objects beyond Earth have been fascinating humans since long before our species could even express their awe in written... click to read more

Is the Sun a Sun-like star? Asking this oxymoronic question might sound strange to most people, but not to astronomers. Comparing the Sun with other stars is a common technique to better understand the Sun and its behavior. Of particular interest here are stars very... click to read more

Roughly half of all stars are in multiple systems (binaries, triples etc), which means that two or more stars orbit each other because of their mutual gravitational pull. For stars of about the mass and age of the Sun, the average separation between companion stars... click to read more