Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

ESO's Very Large Telescope has observed a rogue planet and revealed that it is eating up gas and dust from its surroundings at a rate of six billion tons a second.

Just two decades after astronomers discovered the first exoplanet, NASA has confirmed the existence of 6,000 alien worlds.

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

By Dean Murray A team of astronomers has detected for the first time a growing planet inside a ring. The planet, named WISPIT ...

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...