A Chalmers-led team of astronomers has for the first time observed details on the surface of an aging star with the same mass as the Sun. Alma’s images show that the star is a giant, its diameter ...

Unlike giant stars that explode into a supernova and collapse into a black hole, a medium star like Earth's sun just keeps on trucking until it runs out of nuclear fuel, suffering a more prolonged ...

The discovery of an Earth-like planet 4,000 light years away in the Milky Way galaxy provides a preview of one possible fate for our planet billions of years in the future, when the sun has turned ...

Take a close look at the Sun that fuels the life on our planet. A source of light and warmth for all Earth-dwelling creatures, it is moving, like all other things in our universe, towards its ...

What happens at the end of our world? Scientists have found an Earth-like planet orbiting a star 4,000 light years away from the solar system that may reveal our planet’s ultimate fate. The rocky ...

A new study using updated stellar models suggests Earth could survive both of the Sun's giant expansion phases and remain in orbit around the resulting white dwarf, though researchers say significant ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

A new study suggests that when our star becomes unstable in 5 billion years or so, Earth may avoid being engulfed by its fiery demise.