For two decades now, the iconic twin Voyager spacecraft have been quietly overturning everything we thought we knew about the ...

Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies offering crucial insights into the solar system’s formation.

Astronomers detected hundreds more new worlds beyond the solar system this year and worked to better understand what makes them tick. SEE ALSO: Scientists haven't found a rocky exoplanet with air.

If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...

Delving into the behaviors of the Sun and protecting humans at home and beyond are top priorities, according to the National Academies.

TNOs are small bodies, or 'planetesimals,' orbiting the sun beyond Pluto. They never accreted into planets, and serve as pristine time capsules, preserving crucial evidence of the molecular processes ...

NASA's Parker Solar Probe flew closer to the Sun than ever before. It traveled at 430,000 mph, making it the fastest ...