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[NASA] Curiosity Blog, Sols 4682-4688: Seven Mars Years

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Curiosity Blog, Sols 4682-4688: Seven Mars Years

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NASA’s Mars rover Curiosity acquired this image that looks down toward both the floor of Gale Crater, where we started our journey up Mount Sharp more than a decade ago, and toward the “Monte Grande” hollow that we hope will contain our next drill target. Curiosity captured the image using its Front Hazard Avoidance Camera (Front Hazcam) on Oct. 9, 2025 — Sol 4684, or Martian day 4,684 of the Mars Science Laboratory mission — at 21:28:14 UTC.
NASA/JPL-Caltech

Written by Diana Hayes, Graduate Student at York University, Toronto

Earth planning date: Friday, Oct. 10, 2025

This week was one of seasonal changes and milestones for the mission. As was

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, Mars has now moved out of its “cloudy season” and is transitioning into the “dusty season” as the planet moves closer to the Sun. This means that we should expect to see an increase in dust lifting and dust-****** activity over the next several months. With more dust in the atmosphere, we expect to lose the beautifully clear skies that have allowed us to take pictures of features at tremendous distances from the rover, like
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. We’ll also be keeping an eye out for the possible development of a global dust storm this season, as one has
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. 

Back in August, we celebrated 13 Earth years since

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back in 2012. This Monday, Oct. 6, a bit after 1 a.m. UTC (8 p.m. EDT Oct. 5), our intrepid rover marked its seventh full Mars year on the surface. (Because Mars is farther from the Sun than Earth is, a year on Mars — or one full trip around the Sun — lasts 687 Earth days.) Curiosity is only the second vehicle on Mars to reach that milestone, behind only
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. Although Curiosity has not yet matched Opportunity’s longevity or distance driven, over the last seven Mars years we have put together the longest and most comprehensive record of the modern Martian climate. REMS has been recording weather conditions at least once an hour almost every hour since 2012, and RAD has now measured surface radiation conditions for more than a full solar cycle, data that will be critical to
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. We’ve taken more than 3,000
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and
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of atmospheric opacity, dust lifting, and dust-****** activity. I’ve been a member of our environmental science team for just over five (Earth) years now (or about 2 ½ Mars years), and I can still hardly believe that I’ve been able to help contribute to this incredible legacy. Although our well-traveled rover is now in its fifth Extended Mission, as a team we have no intention of slowing down any time soon.

Other than celebrating these milestones, this week was focused on setting up for the first of our two planned drills in the boxwork region. This first drill will be in one of the boxwork “hollows.” We’re currently targeting a hollow we’ve nicknamed “Monte Grande,” with the goal that we’ll be set up to drill there next week. Once we’re done at Monte Grande, we plan to drive up to one of the raised ridges that give the boxwork region its spiderweb-like appearance. By comparing the results of these two drill campaigns, our hope is that we’ll be able to gain a better understanding of the processes in Mars’ past that led to the formation of these fascinating features. 

As we prepare to drill, both science theme groups continued their usual cadence of contact science and remote sensing to characterize the local geology and environment. This weekend will be particularly busy on the environmental science side of the mission, with coordinated observations with APXS and ChemCam to track seasonal changes in the composition of the atmosphere. We’ll also be using

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to measure the amount of atmospheric methane at Gale. This is an activity that we’ve performed periodically over the mission, and has inspired much spirited debate over the sources and destruction mechanisms of
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. 

Here’s to many more years of roving and scientific discovery!

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NASA’s Mars rover Curiosity at the base of Mount Sharp
NASA/JPL-Caltech/MSSS

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Nov 13, 2025

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