Firefly Aerospace launched its two-stage Alpha rocket from California early Tuesday, but something went wrong about two-and-a-half minutes into the flight, rendering the rocket unable to deploy an ...

NASA has awarded a $30 million contract to a startup to attempt to boost the orbit of an astronomy satellite before it ...

One of those challenges is China's continued reliance on expendable rockets. This has made it more important for China to ...

Earth's orbit is an ellipse, not a perfect circle. Earth's distance from the Sun varies by about 3 million miles throughout the year. Earth's orbit's semimajor axis is approximately 93 million miles.

Space is getting crowded, with junk. Essential satellites delivering navigation, weather forecasts, the Internet and other services face this threat daily. Old rockets, decaying spacecraft and human ...

Thanks for the memories, Akatsuki Japan’s Aerospace Exploration Agency has decided to abandon its Akatsuki Venus orbiter, ...

You may well be thinking, “Hang on! Isn’t the whole point of ‘space’ that there’s no air up there?” You’re right, in a way. And yes, rockets and satellites usually rely on actual “rocket” engines to ...

China is pushing to accelerate the rollout of commercial low-orbit satellite internet services as it strives to develop home-grown rivals to SpaceX’s Starlink network. In a guideline released on ...