This article was updated Nov. 21, 2025 shortly after BioSentinel’s mission marked three years of operation in deep space.

The Nuclear Furnace at the Sun's Heart The temperature in the Sun's core is about 27 million degrees Fahrenheit (15 million ...

Growing up in a small town in Pennsylvania, astronomy and physics Prof. Michael Smutko could see the Milky Way alongside ...

Eveline Larrucea, photographing from a ranch along the A-23 road, captured the event and described the sight as “spectacular.

Tom Kerss, an astronomer and chief aurora chaser for Norwegian cruise line Hurtigruten, reveals why we are so captivated by ...

Under the right conditions, the northern lights are visible near Los Angeles. Here's how to find out the next time the aurora ...

"Similar to the asteroid belt, the Kuiper Belt is a region of leftovers from the solar system's early history. Like the ...

Are you making costly mistakes with your residential solar panels without even realizing it? Solar energy has gained ...

The sun goes through repeating cycles of activity roughly every 11 years. During the active phase of a solar cycle, the ...

U.S. Coast Guard will no longer classify swastikas, nooses as hate symbols ...

The northern lights are being seen more now. It's due to solar science but also due to advancements in technology.

The sun’s current 11-year activity cycle has already peaked—but extreme outbursts from our star may still be in store ...