Roscosmos had previously suggested a man-made hole in the Soyuz spacecraft caused an air leak on board the International Space Station in August 2018.
Skybot F-850, also known as Fedor, left Earth on the Soyuz-2.1a rocket late Wednesday night.
Skybot F-850, also known as Fedor, will take off from Baikonur on the Soyuz spacecraft on August 22.
The observatory is expected to map around 100,000 galaxy clusters—the largest known gravitationally bound structures in the universe—and three million supermassive black holes.
Roscosmos says the U.S. wants to "destroy" Russian-American relations in space.
Roscosmos will try to regain control of the satellite Monday.
"We have set this objective to fly and verify whether they've been there or not," said the Director General of Roscosmos.
The Russian space agency Roscosmos has announced ambitious plans to establish a long-term base on the moon.
Dmitry Rogozin, the head of Roscosmos Federal Space Agency, said the SpaceX founder had deliberately undercut rocket launch prices "to squeeze Russia out of this market."
Roscosmos has become the subject of ridicule after budget cuts and high-profile setbacks.
Astronauts on the International Space Station do not even have sinks because of the way water behaves in microgravity.
Musk thinks he can avoid the Cold War-era disasters.
The satellite's rocket may have faltered, sources speculated.
Fedor can already fire guns, lift weights and drive in a straight line.
Launched from Kazakhstan with a designer born in Ukraine, the success of Sputnik is one the most celebrated Soviet achievements in Russia.
This is a key milestone in NASA's longer-term plan to send humans to Mars.
Russians have the opportunity to fill eight of the seats on Russia's planned mission to the Moon.
To protect artifacts from war and natural disasters, state scientists have offered a novel approach.
Roscosmos plans a manned moon station based on Cold War-era research.