 Given that the E-8 is a large aircraft that cannot defend itself, there are US attempts to move the E-8 capability into space, under a variety of names, most recently a simple "Space Radar".In an era of budget demands, however, this extremely costly new generation has not been launched.ISAR can produce actual images, but the discipline is generally called MASINT rather than IMINT.A much more modest ISAR capability is on the Navy's SH-60 multimission helicopter, carried on destroyers, cruisers, and aircraft carriers.