https://freesky.store/post/uncovering-the-valleys-hidden-below-greenlands-ice FreeSky GeoData en 2026-09-28T04:00:00.000Z https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2026/uncovering-the-valleys-hidden-below-greenland’s-ice/greenlandvalleynet_ifpa_2026.jpg?w=1440&h=1847&fit=clip&crop=faces%2Cfocalpoint