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An artist’s impression of the far-future sun, swollen to become a red giant star, as seen from a molten Earth landscape. As summer settles in and temperatures climb in the Northern Hemisphere, it’s ...

It’s impossible to forget just how much the sun affects life on our planet. It’s overwhelmingly the source of our light and heat, providing just enough to maintain the delicate climatic balance we ...

All the activity on Earth’s surface — erupting volcanoes, shifting tectonic plates, restless seas and myriad forms of life — depends on the two-part engine under the hood. Directly beneath Earth’s ...

In a new paper published in Physical Review X, researchers present compelling evidence for a “helicity barrier”—a previously hypothesized but unconfirmed structure that could explain one of the most ...

We Earthlings see the sun every day of our lives—but gaining a truly new view of our star is a rare and precious thing. So count your lucky stars: for the first time in history, scientists have ...

Massive stars do not live long. There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the width of the sun. If it were placed in our ...