In late May and early June, many people in the central and southeastern United States saw a bright red sun in the sky. Some ...

People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the ...

Astronomers spotted a potential Earth-size rocky world orbiting a white dwarf ... O’Callaghan In six billion years the sun will expand into a red giant. That process should consume Mercury ...