Why the U.S. government may have to scrap its plan to build a new space engine

NEW YORK — In the weeks before President Donald Trump announced plans to send a space engine to the International Space Station, he suggested that the U,S.

space program might have to move to new engines if the U., as a nation, wanted to maintain its space ambitions.

The plan to send an American rocket to the orbiting laboratory is one of the most ambitious in decades, and one that’s been fraught with problems since Trump announced it in April.

A series of delays, costs and technical glitches have made progress on the project a distant memory.

The rocket that the president called for, the Space Launch System rocket, is already under construction in the U: The rocket is expected to be ready for testing in late 2018.

But it’s still in development, and the U has yet to put a payload on it, much less launch it into orbit.

The U.N. Security Council, the world’s largest military body, has repeatedly condemned the United States for the delays, and in June, the US. and Russia announced they would suspend the planned testing of the rocket until at least 2019.

But there is some good news.

The International Space Agency, which is building the rocket, has said that it will start the test flight of the new engine in 2021, and that the first stage of the engine will be ready by 2021.

The rocket will then undergo testing in the next five years, a U.K.-led mission could also go ahead this year.

The U-S.

rocket will be used to launch NASA’s Orion capsule to the space station.

Orion will eventually ferry astronauts to and from the orbiting lab, which astronauts have called home for more than two decades.