It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

At the very edge of our solar system, beyond the grasp of Neptune and even past the icy sprawl of Pluto’s domain, a new ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

Astronomers have long been intrigued by the makeup of the asteroid belt’s largest body. When it was first spotted in 1801, ...

Astronomers have discovered a freezing-cold world orbiting within the so-called "forbidden zone" around a dying star in which planets are normally destroyed. The 5.8-billion-year-old white dwarf ...

The Acuity Triton supports that mission perfectly. It’s an investment in performance, in our planet, and in a partnership we’re incredibly proud of,” he said. Fujifilm Speciality Ink Systems marketing ...

They lie about 250 astronomical units from a third brown dwarf, making the system even more complex. Adding a planet to this picture only deepens the mystery. The system belongs to the Argus ...

A newly identified mutation helps super-sleepers get by on just four to six hours of shut-eye per night, while the rest of us need around eight hours. Researchers described the SIK3-N783Y mutation ...

Seeing these signs of life on K2-18b, a Neptune-like world that orbits the red dwarf star K2-18, is a solid indication that we may not be alone. K2-18b is a bit unusual as a planet in the ...