SCIENCE · VERIFIED DEVELOPMENT
Asteroid Strike May Explain Deimos' Puzzling Features
WHY IT MATTERS
This finding could provide valuable insights into the geological history of Deimos and the potential for similar impacts on other small bodies in the solar system, helping scientists better understand the formation and evolution of our celestial neighbors.
What happened
Simulations suggest a single asteroid impact could be responsible for two of Deimos' most puzzling features: its large southern depression and unusually smooth, dusty surface.
The impact, which occurred when a roughly 320-meter asteroid struck the Martian moon at an angle, threw debris around the entire world without breaking it apart.
New observations from ESA's Hera spacecraft support this scenario and indicate that Deimos is surprisingly porous and fragile.
PRIMARY SOURCES
One asteroid strike may explain two mysteries of Mars’ moon Deimos
ScienceDaily · Discovery only; verify against the cited research or institution when available