Stars pollute, but galaxies recycle

Galaxies were once thought of as lonely islands in the universe: clumps of matter floating through otherwise empty space. We now know they are surrounded by a much larger, yet nearly invisible cloud of dust and gas. Astronomers ...

US nuclear safety claim is a 'dangerous fantasy': study

In April 2010, the US government adopted a new nuclear strategy that depends on the conclusion that the current missile defense systems will reliably protect the continental United States in the extreme circumstances of nuclear-armed ...

China to build 'world's fastest' wind tunnel

China has announced it is building the world's fastest wind tunnel to develop a new generation of super-fast airplanes, but it could also be used for hypersonic missile technology.

A dusty lab in the sky

Joe Nuth loves dust. Among astronomers, that puts him in a minority.

SKorea rocket takes off, satellite launch fails

(AP) -- South Korea's first rocket launch Tuesday failed to push a satellite into its orbit but the flawed mission may still anger rival North Korea, coming just months the communist nation's own launch drew international ...

India successfully tests nuclear-capable missile

(AP) -- India again successfully test-fired a nuclear-capable missile Sunday that can hit targets across much of Asia and the Middle East, a defense ministry statement said.

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