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

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

Dr. Jane Huang's research on planet formation in harsh environments, particularly within the Sigma Orionis cluster, offers ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

Although the occurrence climaxed on Jan. 21 with a conjunction—close alignment—of Saturn and Mercury, the planetary parade ...

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

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

Herbert Wich Titusville, Florida 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 ...