Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Each planet in our solar system is given a unique, humorous catchphrase that reflects its personality and role. From ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

The planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

NASAs Perseverance rover has collected a historic rock sample dating back to the Noachian era on Mars. This discovery could provide insights into the formation of planets over 4.1 billion years ago ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star. This technique can ...

To better understand why the planets have variable compositions ... to the formation of the gas and ice giants in the outer solar system. This first-order model of planetary growth in the solar ...