Somewhere above Earth, natural radiation may be doing what spies cannot: probing satellites for hidden nuclear weapons.

A constellation of cubesats fitted with special detectors could sniff out nuclear weapons hidden on satellites launched by ...

The Van Allen radiation belts are swarms of high-energy charged particles trapped in the web of Earth's magnetic field, many ...

The Outer Space Treaty bans nuclear weapons in orbit—but we currently have no way to verify that satellites aren't carrying ...

There is a long-standing international treaty in place but we can't be the only ones side-eyeing world's current crop of ...

Add Yahoo as a preferred source to see more of our stories on Google. Gen. Stephen Whiting, the commander of U.S. Space Command, recently made waves when he publicly discussed a major threat that ...

When Iran’s covert nuclear program came to international attention over two decades ago, Tehran insisted that its intentions were peaceful and that it had no plans to develop weapons. The country’s ...

Space-based nuclear weapons are a serious matter, and one that deserves the very highest level of national attention.