ripples

May 16, 2012

Wind and hills

A piece of Mars: Blueish and yellowish ripples wind their way around a bright hill. The yellowish ones are probably not moving anymore, but the blueish ones are likely still active from time to time. (HiRISE ESP_020889_1320)
May 10, 2012

So beautiful

A piece of Mars: The dunes can be so beautiful on Mars. What a lovely vacation spot this would be, provided you brought a large supply of oxygen, food, and a heat source to keep you warm. (HiRISE ESP_026416_1620)
May 8, 2012

Tweed

A piece of Mars: Patterns within patterns (metapatterns?).  These small martian dunes shown an unusual complexity in their crossing lines, indicating that they were formed by winds from several directions (and it is likely that those winds changed over time). […]
May 3, 2012

Colors and waves

A piece of Mars: Here are some lovely ripples on Mars. In the same field of ripples, there are large wavy white ones and small complex blue ones. Why are there two different types, made distinct by their color, size, […]
April 29, 2012

Echoes of the past

These dunes are quite unusual for Mars, and difficult to interpret. The thick blue and white stripes are dunes in their current location, but subtle stripes above them seem to indicate former positions of dunes, small pieces that got left […]
April 27, 2012

First post: who am I and what am I doing here?

Well now, here is my very first post of my very first blog. Ever. Although really it’s not my first time writing what I think, so maybe it’s not a big deal after all. I am a research scientist here […]