Space.com: A new type of greenhouse is being refined for future lunar or Martian colonies to grow fresh fruit and vegetables. Scientists at the University of Arizona’s Controlled Environment Agriculture Center (CEAC) built a prototype lunar greenhouse where plants are grown without either soil or sunlight: Potatoes and other vegetables are grown in waterhydroponicallyand are buried in a module beneath a planet’s or moon’s surface to protect them from harmful radiation; they receive light from sodium vapor lamps in the module. The system would operate independently and would use robot-like components. A similar CEAC food-production system has been operating at a South Pole research station for the past six years.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
Get PT in your inbox
PT The Week in Physics
A collection of PT's content from the previous week delivered every Monday.
One email per week
PT New Issue Alert
Be notified about the new issue with links to highlights and the full TOC.
One email per month
PT Webinars & White Papers
The latest webinars, white papers and other informational resources.