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

Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice giant and how it can help us understand more about planets in our Solar ...

Scientists have found that Uranus is emitting its own internal heat — even more than it receives from sunlight — and this discovery contradicts observations of the distant gas giant made by NASA's ...

Astronomers have discovered icy rocks in the outer solar system that challenge the known laws of physics, suggesting the ...

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 ...

There can never be too many buildings with President Donald Trump’s name on them. That’s what the president, 79, appeared to suggest on Thursday while participating in an event at the Institute of ...

"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 ...

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 ...

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 ...