The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar ...

China's EAST nuclear fusion reactor has successfully kept plasma stable at extreme densities, passing a major fusion ...

Black holes are not cosmic vacuum cleaners. They are among the universe’s most extreme objects - and come in different sizes.

At about 950 times bigger than our Sun, Betelgeuse is one of the biggest stars in our Universe. But that comes with a price. Just like us, stars have a life expectancy, and Betelgeuse is no different.

By combining observations from two space missions, scientists were able to follow one exceptionally active region on the Sun for months, revealing how its magnetic structure evolved over time. Our sun ...

For decades, astronomers have tracked changes in its brightness and surface features in hopes of figuring out why the star ...

That star at the center of our Solar System, that superhot ball of plasma that gives us heat and energy, and amazing ...

In a zesty new discovery, scientists have unearthed a strange lemon-shaped exoplanet. It is unlike one we have seen before, ...

For Earth to be born, our solar system needed certain isotopes which could only be formed by supernovae. But, shouldn't such ...

The sun is not only our closest stellar neighbor, it's also the star we understand the most. As we've observed it over the ...