All nuclear weapons resources
Report

An Analysis of North Korea’s Unha-2 Launch Vehicle
North Korea has announced that it will attempt to launch a satellite into orbit in early April 2009 using its Unha-2 launcher. Few details are known about the launch vehicle since it has not been successfully flight tested.
Report

The Proposed European Missile Defense System
Union of Concerned Scientists (UCS) analysis of the European missile defense system proposed by the Bush administration.
Report

Model of a 2-Stage Safir Launch Vehicle
On February 3, 2009, Iran placed a small satellite in orbit for the first time. Analysts have questioned what technical characteristics the Safir 2 launch vehicle would require in order to place a 27-kg satellite in orbit.
Report

Colliding Satellites
Information on the Feb. 10th collision between a Russian and an American satellite.
Report

The Growth of Space Debris
The amount of space debris orbiting the Earth has steadily increased since 1957.
Report

The Chinese Shenzhou 7 “Companion Satellite”
Analysis of the BX-1’s guidance mechanism indicates that it could not maneuver at close range around another country’s satellite
Report

Toward True Security
Proposals for what the next president needs to do in US policy to reduce nuclear arsenals worldwide.
Explainer

Nuclear Terrorism Overview
Could terrorists obtain nuclear weapons?
Report

One Nuclear Explosion over Denver
If one nuclear weapon exploded above downtown Denver, some 60,000 people would die within hours, and an equal number would be seriously injured.
Report

One Nuclear Explosion over Minneapolis
An accidental Russian launch against one—or more—US cities remains a real threat.
Report

DOE's Plan for the Future of the U.S. Nuclear Weapons Complex
Over the next several years, the U.S. government must make critical decisions about the future of the nation's nuclear weapons complex.
Report

The Missile Defense Space Test Bed
This factsheet outlines the Bush administration's funding request to develop a space-based missile defense system.