Nuclear Thermal Rocket Stage Seen Costing 'Ones of Billions

DARPA's nuclear space propulsion project advances to next phase

NASA to test nuclear rocket engine for possible Mars missions

US to Develop Nuclear Engine to Power Crewed Missions to Mars - Bloomberg

If this becomes reality, it will be incredible to see. Source: : r/Damnthatsinteresting

How much does a single SpaceX rocket cost to make and launch? Why is it more expensive than other rockets like Ariane or Proton? - Quora

Momentum grows for nuclear thermal propulsion - SpaceNews

The Nuclear Thermal Rocket

Bigger Than Saturn, Bound for Deep Space, Air & Space Magazine

JWST and SLS drive up cost and schedule growth on NASA programs - SpaceNews

US Air Force's Sentinel missile 'struggling,' faces rising costs

rocket Archives - Universe Today

New contract unlikely to significantly reduce SLS costs - SpaceNews

NASA's $500 million rocket gamble is worth it - The Japan Times

Mars Sample Return cost growth threatens other science missions - SpaceNews