Russia’s Advances on Space-Based Nuclear Weapon Draw U.S. Concerns

The United States has informed Congress and its allies in Europe about Russian advances on a new, space-based nuclear weapon designed to threaten America’s extensive satellite network, according to current and former officials briefed on the matter.

Such a satellite-killing weapon, if deployed, could destroy civilian communications, surveillance from space and military command-and control operations by the United States and its allies. At the moment, the United States does not have the ability to counter such a weapon and defend its satellites, a former official said.

Officials said that the new intelligence, which they did not describe in detail, raised serious questions about whether Russia was preparing to abandon the Outer Space Treaty of 1967, which bans all orbital nuclear weapons. But since Russia does not appear close to deploying the weapon, they said, it is not considered an urgent threat.