Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary migrations that shaped the worlds we know today. While it may seem intuitive that ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Astronomers using ALMA have uncovered how gas and dust in planet-forming disks evolve separately an insight that reshapes our understanding of how different types of planets form. While dust lingers, ...

How did a planet this big form around a star this small? An international team of astronomers, including researchers from the University of Liège and collaborators in UK, Chile, the USA, and Europe, ...

What is a planet? -- How did the planets form? -- How do planets move? -- What planet orbits the sun the fastest? -- Why is Venus the solar system's hottest planet? -- How fast is Earth moving? -- Why ...