Plus, an in-depth look at how the West Texas city of Seminole reacted when a measles outbreak tore through the region.

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

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

Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25 ...

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

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

The giant planet, named TOI-6894b, was spotted using NASA’s Transiting Exoplanet Survey Satellite, or TESS. The work was led ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

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

Given the name 2017 OF201, the object falls into a category called trans-Neptunian objects that orbit the sun at a distance ...

Scientists have discovered a giant planet called TOI-6894b, orbiting a star that should be far too small to have formed it.

For the unversed, "Planet Nine" is a hypothetical planet which is reportedly larger than Earth that is thought to orbit ...