It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

A sweeping new ICE operation shows how Donald Trump’s focus on immigration is reshaping federal law enforcement.

A recently discovered celestial body is rewriting our knowledge of the Kuiper Belt and maybe challenging the existence of the ...

In a distant region of space thought to be empty, a newly discovered dwarf planet inspires a debate about the existence of a giant planet hiding out there.

The TNO, which are described as minor planets that orbit the sun at a greater distance than Neptune, were found on the edge ...

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system ...

Image Credit: images of dwarf planets from NASA/JPL-Caltech ... planet larger than Earth – expected to exist far beyond the orbit of Pluto. The idea of a planet has been suggested because ...

TNOs are bodies in the solar system that orbit the Sun beyond Neptune ... 2017 OF201 comes within 45 AU of the Sun. Dwarf planets. Image: NASA/JPL-Caltech; image of 2017 OF201: Sihao Cheng ...

Credit: Credit: K. Batygin. A new study has revealed that Jupiter—our solar system’s largest planet—was once even more enormous than it is today. In fact, around 3.8 million years after the ...