An upcoming satellite mission will provide a first-of-its-kind, hyper-detailed view of Earth — and a glimpse of how shifting geopolitics on the ground may play out in space.
Why it matters: Earth-observing is now a key space capability for countries. The technology helps answer crucial questions about the impacts of climate change and guide officials in managing resources and disaster response.
Saturn's small, crater-covered moon Mimas may have a vast ocean under its thick icy surface, according to a new paper.
Why it matters: The discovery suggests the conditions under which oceans — thought to be promising places to look for signs of life — can exist may be more varied than previously thought.
