Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a ...

This NASA/ESA Hubble Space Telescope image reveals a tiny patch of sky in the constellation Hydra. The stars and galaxies ...

The potential discovery of a large planet beyond Neptune’s orbit could change everything we know about the Solar System.

The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...

UCF researchers utilized the James Webb Space Telescope to uncover unique characteristics of (2060) Chiron, a distant ...

Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If ...

Scientists have discovered new characteristics of a small body which orbits the sun between Jupiter and Neptune, providing ...

This "kiss and capture" mechanism offers a fresh perspective on planetary formation, particularly about Pluto and its largest ...

J anuary 5, 2005, is an astronomical anniversary that is not really marked but should be. It saw the discovery of dwarf ...

Billions of years ago, in the frigid outer reaches of our solar system, two icy worlds collided. Rather than destroying each other in a cosmic ...

Billions of years ago, in the frigid outer reaches of our solar system, two icy worlds collided. Rather than destroying each ...

Scientists from the University of Central Florida have used the James Webb Space Telescope to reveal that a mysterious object ...