Webb provides crash course on planet-shattering collisions
In the early history of our solar system, scientists theorize that a Mars-sized object called Theia smashed into the infant Earth, vaporizing massive amounts of rock and blasting it into space. Some of that material coalesced into the moon, where NASA's Artemis program is returning humans, preparing for Mars and shaping the future of space exploration.
NASA's James Webb Space Telescope has provided a unique opportunity for astronomers to gain insights into planet-shattering collisions that occurred in the early history of our solar system. By studying a rare class of young stellar systems called extreme debris disks, scientists have been able to examine the composition and evolution of these chaotic systems.
The findings, published in The Astrophysical Journal, suggest that only about 1% of young stars exhibit observable signatures of this phase. The extreme debris disks are characterized by smaller dust grains, a high concentration of warm dust, and irregular brightness variations. Through mid-infrared spectra, researchers identified two main categories of extreme debris disks: silica-rich and silica-poor.
Silica-rich disks are believed to be produced by high-energy impacts between Mars-sized bodies, while silica-poor disks are the result of smaller-scale collisions between moon-sized objects. This new data has allowed scientists to better understand the process of planet formation and the evolution of our solar system.
Written by urgent.news from Phys.org's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
This story
This is one outlet's version. Read the fullest account.
- NASA’s Webb Provides Crash Course on Planet-Shattering Collisions science.nasa.gov
