A Physicist Has an Ingenious Plan to Track Arctic Sea Ice With a Cold War-Era Early Warning Radar
An effort to bounce radar off the ionosphere across vast distances was too late for the Cold War, but it may help make Arctic shipping lanes safe.

An effort to bounce radar off the ionosphere across vast distances was too late for the Cold War, but it may help make Arctic shipping lanes safe.

An effort to bounce radar off the ionosphere across vast distances was too late for the Cold War, but it may help make Arctic shipping lanes safe.
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An effort to bounce radar off the ionosphere across vast distances was too late for the Cold War, but it may help make Arctic shipping lanes safe.
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