A new discovery, made using the James Webb Space Telescope (JWST), may just be the weirdest exoplanet yet, possessing an ...

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

Despite being one of the most promising places to explore for signs of life, "special regions" and "uncertain regions" may be ...

In the remote outer reaches of planetary systems, far beyond the orbit of known planets, enormous and mysterious worlds silently loop around their stars. Some drift as far as 10,000 times the distance ...

After studying thousands of computer simulations of the solar system, researchers at Rice University and the Planetary Science Institute think there’s a 40% chance an elusive “Planet Nine” or “Planet ...

"It represents a major step forward in how we think about the search for distant worlds capable of hosting life." Water isn't just delivered to planets by comets and asteroids — it can also be forged ...

Scientists investigate psychological responses to long-term experiences of lack of natural light, spatial confinement, ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

The outer reaches of our Solar System continue to reveal a complex dynamical environment where the interplay of gravitational forces shapes the orbits of a myriad of distant bodies. Research in this ...