mare_nubium_pband_radar.jpg

Imaged with radar from Earth, Mare Nubium reveals bright, somewhat angular features hidden underneath the surface — lava flows that solidified following the turbulent birth of the moon billions of years ago. Scientists use data like this to understand whe (Image: UA/NASA-Goddard/Smithsonian) Imaged with radar from Earth, Mare Nubium reveals bright, somewhat angular features hidden underneath the surface — lava flows that solidified following the turbulent birth of the moon billions of years ago. Scientists use data like this to understand where the lava came from, and to determine the scale of the eruptions and how long they lasted.