During her time in the Peace Corps, former Sun Journal staffer Vanessa Paolella reminded us of the value of showing up.

Comets are not the only celestial bodies with tails. Earth and Mercury also possess them, formed by different mechanisms.

Researchers at the University of Hawaiʻi Institute for Astronomy (IfA) are helping reshape how scientists study the sun. The ...

Right now, as a passenger on planet Earth, you’re zooming through space at incredible speeds. But why can't you feel it?

Scientists are preparing for their best look at it yet.

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

A sleep-inducing molecule humans use to make proteins was found, along with other amino acids, on an asteroid named Bennu.

Scientists reveal why time moves faster on Mars than on Earth, and how this affects future space communication and navigation ...

On December 19, this interstellar visitor with its peculiar composition offers a glimpse into the makeup of celestial bodies ...

On Dec. 12, 1967, NASA launched the Pioneer 8 spacecraft on a mission to study the sun. [‘On This Day in Space’ Video Series ...

A spectacular total solar eclipse, one of the century's longest, will plunge parts of Spain, North Africa, and the Middle ...