The coming decades of space exploration hinge on a single, stubborn number: the 225 million kilometres between Earth and Mars ...
The United States flew a reactor in space in the 1960s and has studied nuclear thermal propulsion for decades. Fuel is not the primary limitation either; the enriched uranium supply chain is ...
The Departments of Energy and Defense partnered with Valar Atomics to transport a mini reactor from California to Utah. Read ...
A new preprint paper has taken a look at what propulsion systems could deliver spacecraft to a particularly interesting area ...
Sending a mission to the solar gravitational lens (SGL) is the most effective way of actually directly imaging a potentially ...