article_snippet: Scroll down for video .
article_snippet: In the diagram above, NED stands for nuclear explosive device.
article_snippet: The findings were based on information released from the Nuclear-Test-Ban Treaty Organisation.
article_snippet: This operates a network of sensors that monitor Earth around the clock listening for the infrasound signatures of nuclear detonations.
article_snippet: the network relies upon near-Earth objects (NEOs) being tracked, so that the threat of one hitting Earth can be measured in advance.
article_snippet: We, as an advanced species, have had the basic technology for about half a century.
article_snippet: The team is now looking to raise £675,000 to £6.75 million ($1 million to $10 million) in the next year or so, through crowdfunding sites like Kickstarter.