Calls for the US to land astronauts back on the moon before China have been increasingly loud and frequent. But it all hinges on SpaceX’s Starship.

In order to maintain a presence on the moon, there’s going to be a need for energy. How do you maintain a colony of people in a place that has roughly 14 days of sunlight followed by 14 days of ...

Evidence points to a long-lost ocean beneath Ariel’s icy crust. Tides and orbit shifts may have cracked its surface billions of years ago. Growing evidence indicates that a deep ocean may lie hidden ...

Space-based solar power is emerging as a potentially transformative clean energy technology that could drastically cut terrestrial renewable needs and help accelerate global decarbonization.

We may have been wrong about how the Moon's largest crater, the South Pole-Aitken basin, formed roughly 4.3 billion years ago ...