As August 2023 draws to a close, we find ourselves deep within retrograde season with seven planets in apparent backward motion. The lineup includes inner planets Mercury and Venus as well as those ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

When the solar system was first organizing itself, a disk of gas and dust took shape around the sun's central mass. It eventually sorted itself into the system of planets we see today. But there are ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

Recent simulations and research have unveiled a fascinating new insight into the history of the solar system’s terrestrial planets. For years, scientists speculated about how the rocky planets—Earth, ...

A planet's appearance is determined by its composition and atmospheric conditions. Inner planets are rocky due to the Sun's heat, while outer planets contain more gas. Atmospheric gases and surface ...

Astronomers have probed deeper than before into a planetary system 130 light-years from Earth. The observations mark the first results of a new exoplanet survey called LEECH (LBT Exozodi Exoplanet ...