A U.K. start-up has shocked the space exploration community after unveiling plans to use a novel nuclear fusion propulsion system to power an orbital fleet of reusable "alien-like" rockets, known as Sunbirds, which the company says could revolutionize how we explore the solar system — and beyond.

The technology behind this ambitious project will begin testing this year and could make it into space by 2027, Richard Dinan, the founder and CEO of Pulsar Fusion, which is making the rockets, told Live Science. However, the company has set no timeline for when the futuristic spacecraft could become a reality. One expert told Live Science it could be at least a decade away, if not more.

Pulsar Fusion, which also makes traditional plasma thrusters and is developing nuclear fission engines, first announced the Sunbird project on March 6 after developing the concept in "complete secrecy" over the last decade, according to a statement emailed to Live Science. The project was then fully revealed to the public on March 11 at the Space-Comm Expo in London's ExCel center.

In theory, the proposed rockets will be stored in massive orbital satellite docks before being deployed and attached to other spacecraft and rapidly propelling them to their destinations like giant "space tugs," which would massively reduce the cost of long-haul space missions.

Sounds like investment hype.

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