The Air Force's missile warning satellite, SBIRS GEO-3, lifted off aboard a ULA Atlas 5 rocket Jan. 20, after a 24-hour delay. Credit: ULA
North Korean leader Kim Jong-un observes the March 7 test launch of four ballistic missiles. Credit: Rodong Sinmun
Eileen Drake, president  and CEO of Aerojet Rocketdyne Holdings Inc, speaking at the 32nd Space Symposium in Colorado Springs, Colorado, in 2016. Credit: SpaceNews/Tom Kimmell
The Standard Missile-3 Block IIA interceptor launches from the USS John Paul Jones during a successful launch test Feb. 4 EST. Credit: Raytheon
THAAD missile interceptor
The Air Force's missile warning satellite, SBIRS GEO-3, lifted off aboard a ULA Atlas 5 rocket Jan. 20, after a 24-hour delay. Credit: ULA
SBIRS GEO Flight 3, the next satellite scheduled to join the U.S. Air Force’s Space Based Infrared System (SBIRS), in final assembly and test at Lockheed Martin in Sunnyvale, California. Credit: Lockheed Martin
The Missile Defense Agency currently relies mostly on terrestrial sensors, such as this Sea-Based X-Band Radar. But missile defense leaders said the Defense Department must shift more sensors into space to meet future challenges. Credit: MDA/LTC Steve Braddom
A Standard Missile-3 (SM-3) Block 2A launched from the Point Mugu Sea Range, San Nicolas Island, California on June 6, 2015. This test was the first live fire of the SM-3 Block 2A. Credit: MDA
CHIRP
Northrop Grumman-built Space Tracking and Surveillance System (STSS) demonstrator satellites are on-orbit, demonstrating capabilities required for birth-to-death tracking of ballistic missiles and other cold objects in space. Credit: Northrup Grumman artist’s concept
The Missile Defense Agency and U.S. Navy sailors aboard the USS Hopper successfully conducted two developmental flight tests of the Standard Missile-3 (SM-3) Block 1B Threat Upgrade guided missile on May 25 and 26 off the west coast of Hawaii. Credit: MDA.
Navy Vice Adm. James Syring. Credit: C. Shamwell
GMD test
A metal object believed to be a part of North Korean long range rocket launched Feb. 7 is seen in this undated handout picture provided by South Korean Defense Ministry and released by Yonhap  Feb. 9.  Credit: REUTERS/Defense Ministry/Yonhap
North Korean leader Kim Jong Un watches a long range rocket launch into the air in North Korea, in this photo released Feb. 7 by Kyodo.   Credit: REUTERS/Kyodo

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