There was a time when Russia and the United States were in a highly competitive race to the moon. But the 1960s came and went, with America emerging as the pioneer of space travel. The U.S. is still ...

Boeing and Lockheed Martin's joint ULA venture uses the Russian-made RD-180 engine. Musk suggested SpaceX, which designs its own rocket engines, wouldn't be affected. Elon Musk recently addressed the ...

In recent comments to the Russian state-run media service TASS, the chief of Roscosmos said the country’s newest rocket, the Soyuz-5, should take flight for the first time before the end of this year.

Being more efficient and more powerful than chemical rockets, plasma engines are seen as the future of human spaceflight. While NASA-backed plasma rocket projects aim for travel times to Mars be just ...

Russia says it will no longer send rocket engines to the United States, in retaliation for sanctions. The head of the Russian state space agency Roscosmos said it will also stop servicing rocket ...

A federal judge on Thursday lifted her injunction prohibiting the main contractor for U.S. Air Force national security launches from buying Russian rocket engines, NBC News reported. After officials ...

Here’s what you’ll learn when you read this story: While chemical rockets penned the opening pages of the story of human spaceflight, countries around the world are eager to start a new chapter: ...