Home » News & Blogs » Stealth bomber dunes
Bookmark and Share
Cosmic Diary

Stealth bomber dunes

26 Aug 2015, 18:27 UTC
Stealth bomber dunes
(200 words excerpt, click title or image to see full post)

A piece of Mars: These dunes look strangely triangular, a little bit like a flock of stealth bombers. Why? They’re two-faced barchans. Each flat face is an avalanche slope that faces downwind, formed by one of two distinct wind patterns that blow in this area (probably seasonally). Dunes like this can form on Earth, but the older slip face tends to be quickly erased as the winds change. (HiRISE ESP_027854_2150, NASA/JPL/Univ. of Arizona)

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day