Three Russian 'Kosmos' satellites have deployed a mysterious object in orbit. Russia has remained silent on the matter, but ...

Russia released a mysterious object into the Earth’s orbit, raising fears over potential military or experimental space ...

The three satellites, designated Kosmos 2581, 2582 and 2583, launched on a Soyuz-2.1V rocket from Plesetsk cosmodrome early ...

NASA astronauts Butch Wilmore and Sunita Williams, who were stuck in space for more than nine months, took questions after ...

As Mars discussions between the European Space Agency and NASA deepened in 2008 and 2009, the mission's launch vehicle changed to an Atlas V rocket built by US-based United Launch Alliance. Then, just ...

Here’s a look at the International Space Station (ISS), a station operated by a partnership of five space agencies from 15 countries. Information on ISS crews and expeditions can be found here.

In a surprising development that signals a potential thaw in US-Russia relations, a top aide to Russian President Vladimir ...

A German startup named Isar Aerospace will try to launch its first rocket Saturday, aiming to become the first in a wave of ...

Two spacecraft are usually docked at the ISS as “lifeboats” to evacuate the astronauts in the event of an emergency. These ...