During the second quarter of 2015, Raytheon will test a modified Tomahawk Block IV missile nose cone attached to a T-39. The nose cone contains a new multi-mode seeker.

“Tomahawk Block IV cruise missile“. Licensed under Public Domain via Wikimedia Commons.

The new seeker has both active and passive radio frequency antennas that will allow future Tomahawks to broadcast active radar as well as passively receive target electromagnetic radiation.

Source: Alert 5