Space & Astronomy

New form of nuclear propulsion could help to open up the solar system

By T.K. Randall
September 17, 2025

Image: AI-generated (Midjourney) With today's propulsion systems, getting humans to Mars (or beyond) remains a tough proposition - even the most powerful rockets would take a very long time to get there.

Now, though, researchers at Ohio State University have developed a revolutionary new concept for a nuclear propulsion system that could get a crew to Mars within just six months.

Partly funded by NASA, the centrifugal nuclear thermal rocket (CNTR) system is both faster and more efficient than any of today's propulsion systems.

"In recent years, there has been quite an increased interest in nuclear thermal propulsion technology as we contemplate returning humans to the moon and working in cis-lunar space," said Dean Wang, an associate professor in mechanical and aerospace engineering."But beyond it, a new system is needed, as traditional chemical engines may not be feasible."

The new system, which uses liquid uranium to directly heat rocket propellent, will be perfected and tested over the next five years.

"You could have a safe one-way trip to Mars in six months, for example, as opposed to doing the same mission in a year," said engineering student Spencer Christian.

"Depending on how well it works, the prototype CNTR engine is pushing us toward the future."

Source: Independent

Tags: Mars, Nuclear