Could a comet passing through the inner solar system be older than the Sun itself? That question sits at the center of the ...

The sun’s outer atmosphere resembles a pufferfish.

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

From an early age, we are taught to understand that the planets of our solar system change in position while orbiting a central star, the sun. But does the sun itself move within the solar system?

At the ragged frontier where the Sun’s influence gives way to the galaxy, a decades‑old spacecraft has stumbled into a ...

Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...

We live with this star, so it’s really important we observe it and try to understand how it works and how it affects our ...

At the farthest edge of the Sun’s influence, the Voyager probes have stumbled into something that sounds almost mythic: a ...

Despite what you may have heard or learned in school, the sun is NOT the center of the solar system. Despite what you may have heard or learned in school, the sun is NOT in fact the center of the ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

A solar conjunction occurs as Venus' orbit carries it into alignment with the sun and Earth. Venus will align with the sun ...

Imagining every drop of Earth’s water hurled into the Sun sounds like a last-ditch cosmic fire extinguisher, but the physics ...