Abstract: The surface reconstruction of point clouds is a key technology in lunar exploration. The generation of high-precision three-dimensional models of lunar lava tubes via surface reconstruction ...

Think you’re brave? These 10 claustrophobic hikes in the U.S. feature tight squeezes, narrow canyons, and adrenaline-filled ...

Abstract: As an important celestial body in the solar system, the moon has lunar lava tubes on its surface that provide natural protective barriers, making them ideal locations for lunar base ...

Discover winter activities and family-friendly things to do during a visit to a Bavarian-themed village in Leavenworth, ...

Washington in winter is an outdoor lover’s paradise. There are all the snowy season classics like skiing and snowboarding, winter markets, and... The post Winter in Washington: 20 Adventurous and ...