Communications, navigation, battlefield logistics, precision munitions—all of these depend on complete and unfettered access to the spectrum, territory that must be vigilantly defended from enemy combatants.
Airships can patrol the upper atmosphere, monitoring the ground or peering at the stars for a fraction of a cost of satellites, according to a new report. All that’s needed is a prize to kickstart innovation.
A monster virus comes back from ancient times to wreak havoc on mankind. That may sound like a blurb from a science fiction novel, but as scientists have known for some time, it's not at all impossible.