Theia, Moon-forming impactor, likely closer to the Sun
Theia, which formed the Moon, likely came from closer to the Sun than Earth, new research suggests.
Why it matters
- Sheds light on early solar system and Moon formation.
- Provides insights into Earth's composition and formation.
By the numbers
- Analyzed 15 terrestrial rocks and 6 lunar samples.
- Collision occurred about 4.5 billion years ago.
The big picture
- Theia's origin helps understand early solar system dynamics.
- Reveals composition and dynamics of early solar system.
What they're saying
- Research paper linked; call for open access noted.
Caveats
- Study based on isotope ratios; some scenarios ruled out.
- Publication date appears to be in the future, possibly a typo.
What’s next
- More studies on early solar system and planetary formation.