An investigation, carried out by the astrophysicists of the Instituto de Astrofísica de Canarias (IAC), questions one of the ...

Earth wobbles on its axis like a spinning top, a motion called precession. This wobble takes about 26,000 years to complete one full circle. Different stars have served as the North Star throughout ...

The habitable zone — the region where temperatures are just right to support liquid water on a planetary surface — around white dwarfs spans somewhere from a tenth to a hundredth the distance between ...