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

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Each planet in the solar system is characterized as different cricket team players, with unique behaviors and skills. Earth ...

If the solar system held a poetry slam, each planet would present its unique poetic style. Mercury delivers rapid-fire verses ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

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 ...

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 ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

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

These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative stages and played a critical role in planetary formation.