#62

Early Earth's Iron Rain Explained

Experiment re-creates how iron-rich microworlds slammed into a young Earth.

RELATED TAGS: SOLAR SYSTEM
iron-rain
Early Earth was a violent place. City-size planetesimals — rocky microworlds that clumped together in the solar nebula — smashed into our planet’s surface at incredible velocities and seeped down to Earth’s iron core, depositing yet more iron. But now it appears that iron is instead spattered throughout our world’s mantle. To figure out how this happened, Harvard University planetary scientists paired with researchers working at Sandia National Laboratories’ Z...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
DSC-CV0818web
+