About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world ...
Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.
Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...
"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.
Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...
Researchers from the Max Planck Institute for Solar System Research led the study. They examined iron isotopes in 15 Earth ...
New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon ...
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 ...
Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.
Earth has picked up a new traveling companion – an asteroid named 2025 PN7 that now moves through space in step with us. This ...