This story was updated at 12:03 p.m. ET NASA engineers are still perplexed by a stuck valve in the International Space Station's cooling system and may even add an extra spacewalk to fix it to the ...

The current hypothesis is that a valve failed to reseal properly, leading to a ruptured oxidizer tank. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

The Boeing Starliner, is set to undock from the ISS on June 22. This is a several day delay. During its current mission, the spacecraft has encountered a fifth helium leak and a stuck oxidizer valve.

Astrobotic has homed in on a potential cause for the problems plaguing its Peregrine moon lander. Peregrine launched early Monday morning (Jan. 8) atop United Launch Alliance's (ULA) new Vulcan ...