The Northrop Grumman Cygnus cargo spacecraft was captured by the International Space Station's robotic arm. Credit: NASA ...

Some launch providers, such as SpaceX, with its Falcon 9 and Falcon Heavy rockets, have introduced reusable rocket technology, which significantly reduced the cost of launching payloads into space.

Why Is the ISS Being Retired? Since the first segment of the ISS—Zarya—was launched into orbit by a Proton rocket in 1998, it ...

Earth has a variety of islands and bodies of water that resemble a heart. ESA takes you on a tour. Credit: ESA ...