An object up to dozens of times the mass of Jupiter flying through our solar system may have disrupted planetary orbits.

It seems 2025 will have a strong start, too, with a planet parade just a few weeks into the new year. A planet parade is when ...

The journey to understand the universe has taken many forms, but few efforts have been as transformative as unmanned space ...

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain ... Moon landing quiz: How quickly can you name all 12 Apollo astronauts that walked on ...

However, this is just the average time that it takes for our planet to complete ... is the greatest in the solar system at 97.77 degrees. Along with being the outermost planet, the facts about ...