A NASA probe launched into space Friday on a 2.2-billion-mile journey to a huge, metal-rich space rock in the main asteroid belt between Mars and Jupiter. The Psyche spacecraft lifted off atop one ...

Ground and space-based telescopes have observed Psyche in the past, mainly detecting radiation bouncing off the reflective metal on the asteroid’s surface.

On July 25, 1984, the Russian cosmonaut Svetlana Savitskaya became the first woman to embark on a spacewalk, also known as an ...

Welding and metal-cutting is a messy operation on Earth, but all of that dust and debris simply falls to the ground. However, “when you’re in space, in the vacuum, it doesn’t really do that.