dunes

October 1, 2019

Wind and sun on the dunes

Oct. 1, 2019 It’s spring in the northern hemisphere on Mars. Actually, as of today, it’s pretty close to northern summer solstice, but the recent crop of released HiRISE images mostly come from the spring season. Northern polar dunes on […]
August 21, 2019

Dunes or bacteria?

Aug. 21, 2019 Trolling through the HiRISE image catalog, I came across some dunes that look a bit like bacteria. (Well okay, they look like some sort of microbe to my eye, which is highly untrained in looking at microbes, […]
August 5, 2019

Bask in Mars’ beauty, because you can

August 5, 2019 It’s been a while since I posted anything. Not because I didn’t want to, but because I’m involved in so many projects that many things I love are being shoved aside for whatever has to be dealt […]
March 4, 2019

Old dunes and new dunes

On Earth, really old windblown dunes don’t usually survive long enough to become part of the geologic rock record. Dunes are made of unconsolidated sand, which is easily eroded by just about anything, so it takes special circumstances to keep […]
February 11, 2019

Why does Lori study dunes on Mars?

When I look for something to blog about, I usually go to the HiRISE catalog to see if there are any new pictures that I find interesting. Today this lovely dune field caught my eye: HiRISE images are about 6 […]
December 27, 2018

Wind at the Mars InSight landing site

InSight landed in Elysium Planitia on 26 November, 2018, about a month ago as of this writing. Pictures show that it’s a flat place, with small scattered rocks lying around. Unlike in Gale crater, where Curiosity is slowly working its […]
October 8, 2018

Pretty little dune field in Noachis Terra

Noachis Terra is an ancient terrain on Mars, located in the mid southern highlands. It’s the home of many dune fields, big and small. Here’s a fairly small one. You can’t see it, but this is the floor of an […]
September 28, 2018

Lyot crater, Mars

It’s a rough day. A tsunami in Indonesia has killed many people, and the pain is so fresh that there’s not even a death count yet. A couple of my good friends are going through various personal crises that will […]
September 13, 2018

Ever shifting

Dunes are just so amazingly beautiful. I’ll never get over how nature can sculpt such regular patterns into endlessly overlapping structures. Here’s a small bit of a dune field trapped up high between mountains in the middle of Coprates Chasma. […]