What really happens when a spacecraft leaves the solar system? NASA’s Voyager probes have crossed into interstellar space—and ...

The spacecraft is being subjected to extreme temperature changes -- conditions it will face during launch and its journey toward the Sun.

Ramesh Nathan told investors his Bay Area spacecraft company had seven offices around the world, employed more than 15,000 ...

Scientists using South Africa’s MeerKAT telescope have peered into the interstellar medium like never before, uncovering ...

Where Is everybody? The answer to Fermi's famous paradox may be lurking closer than we expected... and it could involve ...