House-Hunting for Caves on Mars Has Already Started Researchers identified nine caves on the red planet that might make suitable shelters for future astronauts. https://ift.tt/HJ8iZar https://www.nytimes.com

Researchers identified nine caves on the red planet that might make suitable shelters for future astronauts.

from NYT > Top Stories https://ift.tt/k2NWhEV
via IFTTT