The legacy of "Brian Tinsley's clever wife"
Happy anniversary, white dwarf star!
Centuries of astronomy, plus video-game technology, offer a stunning new perspective on our place in space.
An Internet guide to exploring the mysteries of sunspots
Could strange new physics be affecting a pair of distant space probes?
In John Updike's memorable description, "The earth is just a silly ball/To them, through which they simply pass."
Scientists face a choice: invoke a deity or continue the quest for knowledge
The idea of creating a “Tree of Minerals” seemed contrived, until recently.