For more than a century, gravity has been the immovable backdrop of modern physics, a force that can be described and ...

An engineer who once worked with NASA says he has built a machine that can push against gravity without burning a drop of fuel, a claim that, if true, would upend how rockets, satellites, and even ...

GOCE’s sophisticated electric ion propulsion system has been switched on and confirmed to be operating normally, marking another crucial milestone in the satellite’s post-launch commissioning phase.

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HELSINKI — Chinese commercial launch firm Orienspace is aiming for a late 2025 debut of its Gravity-2 rocket following a recent first-stage engine hot fire test. Orienspace announced July 8 that it ...