Field Campaign in Iceland 2021 Sunset science. Our Uncrewed Aerial Vehicle Team needed to wait until late in the day (or start early in the morning) to do their mapping, to avoid peak visiting hours in Askja Caldera. pic.twitter.com/1YfOhO9M0e— NASA Expeditions (@NASAExpeditions) December 9, 2021 Back at camp, UAV Team Lead Stephen Scheidt made sure our charging station ran smoothly, so all of our electronic field instruments were powered up and ready to go when we needed them. pic.twitter.com/JM3Xvhi69f— NASA Expeditions (@NASAExpeditions) December 7, 2021 The UAV Team also continued long-term investigations of Mars-like processes happening on the ground in Iceland. They're monitoring migrating gravel ripples and nearby rocks shaped by wind abrasion. These observations help us understand how the surface of Mars is changing, too. pic.twitter.com/y5DbNrsSyq— NASA Expeditions (@NASAExpeditions) December 7, 2021 https://twitter.com/NASAExpeditions/status/1467974709274886144?s=20&t=OZ0If0X1UAfLbOgm37J9XA Tough trucks – and expert guidance from our field leads – helped us stay safe through challenging driving conditions on the way to our field site. pic.twitter.com/8yBhKefxhZ— NASA Expeditions (@NASAExpeditions) December 6, 2021