Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth ...

The Kuiper Belt is loosely defined as a doughnut-shaped swath of space beginning just beyond the orbit of Neptune and ...

This video explores how long it really takes to reach the outer planets: Jupiter, Saturn, Uranus, and Pluto by tracing past missions, their routes, and the engineering trade-offs between speed, fuel, ...

The Voyager spacecraft, on a decades-long journey of exploration, have made an unusual discovery at the edge of our solar system. They’ve detected a layer of hot plasma at the solar system’s boundary, ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

On Episode 176 of This Week In Space, Rod Pyle and and Tariq Malik are joined by Alan Stern to talk about what's next in deep ...

Astronomers have directly spotted a rare young planet, WISPIT 2b, still forming within the gap of a dusty ringed disk around a star like our sun—something long theorized but never observed until now.

How can nuclear propulsion help improve deep space missions by significantly reducing the amount of time to reach Mars and beyond? This is what a recent st | Space ...

NASA's Voyager 1 launched 48 years ago in September 1977 on a decades-spanning journey to study the cosmos and search for ...

"Makemake is one of the largest and brightest icy worlds beyond Neptune, and its surface is dominated by frozen methane," ...