In this challenge, fun tricks are used to build flexibility and core control.

The first spacewalk is scheduled for Thursday, January 8, when astronauts Mike Fincke and Zena Cardman will step outside the station's Quest airlock. Their work will pave the way for the installation ...

During a spacewalk outside the International Space Station, Russian cosmonaut Sergey Prokopyev jettisoned a 5-kilogram bundle of obsolete hardware into the vacuum of space. Credit: NASA | mash mix by ...

Abstract: Space-air-ground integrated networks (SAGINs) face unprecedented security challenges due to their inherent characteristics, such as multidimensional heterogeneity and dynamic topologies.