I don’t have time to do a full post tonight, so I will placate you with a pretty picture: This picture was taken by the HiRISE instrument on the Mars Reconnaissance Orbiter (MRO). I always describe it to people as a spy satellite around mars because it takes SUPER high resolution pictures. The ones available online as jpegs don’t even come close to the true resolution of about 30 cm … Continue reading Dunes in West Arabia Terra