One fateful day about 4.5 billion years ago, a Mars-sized body called Theia collided with proto-Earth, turning both into a ...

The story of how the Moon came to be has always carried a touch of mystery. Picture the young Solar System as a restless place where new worlds grew from swirling gas, dust, and rock. In that chaotic ...

According to the leading theory of how the Earth-Moon system formed (the Giant Impact Hypothesis), a Mars-sized object (named ...

New telescope observations reveal structural features never documented in any known celestial object The morphology defies conventional understanding. The forward anti-tail persists where physics says ...

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

An international team has made a significant breakthrough in understanding the tectonic evolution of terrestrial planets.

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

Maverick astrophysicist Dr Avi Loeb has continued to put forward his claim that 3I/ATLAS looks like more than just a lump of ...

Interstellar comet 3I/ATLAS is leaving our solar system forever. Discover how it was found, and what this rare visitor ...

Where did the planet the size of Mars that crashed into Earth billions of years ago come from? Theia has captured the ...

Objects such as 3I/Atlas and 1I/ʻOumuamua can help give clues about the formation of worlds far beyond our Solar System.