Unsurprisingly, the list of the most expensive missions consists of voyages from NASA. As for the ones on the strictest of ...

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...

The Apollo-Soyuz Test Project brought Soviet cosmonauts and NASA astronauts together in the first international human ...

Australian scientists detected a signal from a satellite launched over 60 years ago. The only problem? It's been deactivated for years.

There is a battle brewing over ownership of a retired NASA space shuttle. The One Big Beautiful Bill Act, signed into law by ...

There's nowhere to park right now at the International Space Station for NASA's next Commercial Crew Program launch, but a ...