Scientists and engineers are diligently working on innovative concepts to make the next era of human spaceflight more powerful and more efficient using nuclear propulsion. One of these designs, known ...

One of the most intriguing of these is Impulse Space, a company founded two years ago by rocket scientist Tom Mueller, who was a founding employee at SpaceX before leaving in 2020.

This high thrust allows the rocket to accelerate faster. These systems also have a high specific impulse. Specific impulse measures how efficiently the propellant is used to generate thrust. Nuclear ...

Nuclear thermal propulsion (NTP) has stood as a promising potential alternative propulsion technology for decades. Chemical rockets have begun to reach their theoretical maximum efficiency, and ...

Tom Mueller is a self-described race car guy. Upon retiring from his role as CTO of Propulsion at SpaceX in November 2020, he "mostly wanted to go racing and ride dirt bikes and travel,” he said ...

Impulse Space has raised a massive new tranche of funding as big-name investors bet that moving satellites around in orbit will soon be a high demand service. The startup, which was founded by Tom ...

Ad Astra Rocket Company has spent over two decades developing the Variable Specific Impulse Magnetoplasma Rocket (VASIMR), a highly efficient electric propulsion system. VASIMR operates by using ...