5 Fast Facts On The National Space Defense Center At Schriever Space Force Base
The National Space Defense Center (NSDC) and its parent headquarters Joint Task Force-Space Defense (JTF-SD), are established ...
China Sets Up 'Planetary Defense' Unit Over 2032 Asteroid Threat
YR4 has a small chance of hitting Earth in 2032, and China is preparing to deter it by mirroring a U.S. space test.