Home » News & Blogs » Ancient Mars May Have Had Rings, Then Moons, Then Rings ...
Bookmark and Share
Discover

Ancient Mars May Have Had Rings, Then Moons, Then Rings ...

2 Jun 2020, 19:30 UTC
Ancient Mars May Have Had Rings, Then Moons, Then Rings ... ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

For a long time after their discovery in 1877, scientists assumed Mars’ two puny moons — Deimos and Phobos — were captured asteroids. This belief persisted until evidence revealed both moons formed at the same time as the Red Planet itself, and that the smaller one, Deimos, has a mysteriously tilted orbit. However, it wasn’t until 2017 that researchers put forth a new idea that could explain why Deimos' orbit is slanted by 2 degrees.

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod