SpaceX launching four astronauts to ISS

After a series of delays, Elon Musk's private company SpaceX is set to launch four astronauts to the International Space Station on Wednesday night on the "Crew-3" mission.

Boeing attempts uncrewed test flight to ISS a second time

Boeing will be aiming to get its spaceflight program back on track Tuesday with an uncrewed flight of its Starliner capsule to the International Space Station (ISS), after its last such test in 2019 ended in failure.

Boeing delays key uncrewed test flight to ISS

Boeing delayed an uncrewed flight of its Starliner capsule to the International Space Station (ISS) on Tuesday over a propulsion issue, pushing back by at least a day a key test it last attempted in 2019.

A new era of spaceflight? Promising advances in rocket propulsion

The US Defense Advanced Research Projects Agency (Darpa) has recently commissioned three private companies, Blue Origin, Lockheed Martin and General Atomics, to develop nuclear fission thermal rockets for use in lunar orbit.

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