SpaceX poised to launch 'world's most powerful rocket'

SpaceX is poised for the first test launch Tuesday of its Falcon Heavy, which aims to become the world's most powerful rocket in operation, capable of reaching the Moon or Mars some day.

The Space Launch System—the most powerful rocket ever built

NASA is in an awkward in-between time right now. Since the beginning of the space age, the agency has had the ability to send its astronauts into space. The first American to go to space, Alan Shepard, did a suborbital launch ...

US astronauts prepare spacewalk to install new docking port

With more private spaceship traffic expected at the International Space Station in the coming years, two US astronauts are set to embark on a spacewalk Friday to install a special parking spot for them.

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