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

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

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

Star TOI-6894 is just like many in our galaxy, a small red dwarf, and only ~20% of the mass of our sun. Like many small stars ...

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

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

An international team of astronomers discovered a giant exoplanet named TOI-6894b orbiting a red dwarf star called TOI-6894, ...

Giant planets are not rare per se — after all, we have four in our own solar system. Such large worlds are, however, rarely ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

Astronomers have spotted a cosmic mismatch that has left them perplexed - a really big planet orbiting a really small star.

With its low density and unusually cool, methane-rich atmosphere, this planet offers a rare window into giant planet ...

TOI-6894 is roughly 240 light-years from Earth in the constellation Leo and is the smallest-known star to host a large planet ...