The NASA rover Curiosity has been making its way across the floor of Gale crater on Mars since 2012. It has closely examined a wide range of rock types which reveal that this location on Mars has experienced a long history of variable climates. From water-infused bedrock, water-deposited conglomerates, wind-formed fossilized dunes to active sand... Continue Reading →
Can You Spot the Difference? The Slowly Changing Surface of Mars
How different is the surface of Mars today compared to one thousand, a hundred thousand or a million years ago? The photo below was snapped by the Curiosity Rover which has spent several years trekking across an ancient lake-bed inside a large crater on Mars. It is a barren, forbidding but strangely familiar and beautiful... Continue Reading →
Cosmogenic Dating Methods Allow Estimates of Erosion Rates on Mars
Just how fast are some rocks on Mars eroding? A few months ago I asked a Martian rock that question (see: My Interview with a Martian: A Story of Origins) and I was not given a very satisfying answer. Well, that rock can be excused for being a bit confused about time given how boring... Continue Reading →