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Movements, leaders, victories and the continuing fight for equality.
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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
Wilmington, North Carolina once had a thriving Black middle class and an elected interracial government. In 1898 white supremacists used violence to overthrow that government, kill Black residents and drive many others from the city.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| System Delta 84 | |
|---|---|
 | |
| Active | July 10, 2025 - present |
| Country | United States |
| Branch | Space Force |
| Role | System Delta |
| Garrison/HQ | Los Angeles Air Force Base |
| Commanders | |
| Current commander | Col Stevie Medeiros |
| Insignia | |
| SYD 84 GUIDON |  |
System Delta 84 (SYD 84) is a unit of the United States Space Force (USSF) that was activated at Los Angeles Air Force Base on July 10, 2025 as a part of USSF Space Systems Command. Col. Stevie Medeiros assumed command of the unit as its first leader.[1] The unit is responsible for Space-Based Missile Warning and Tracking, including threats such as hypersonic weapons and will be linked to its partner delta SpOC Mission Delta 4.[2] The Delta is the first system delta of the USSF.[3][4] SYD 84 is part of the USSF's new structure to consolidate acquisition and support SpOC Mission Deltas.[5]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
System Delta 84 (SYD 84) is a unit of the United States Space Force (USSF) that was activated at Los Angeles Air Force Base on July 10, 2025 as a part of USSF Space Systems Command. Col. Stevie Medeiros assumed command of the unit as its first leader. The unit is responsible for Space-Based Missile Warning and Tracking, including threats such as hypersonic weapons and will be linked to its partner delta SpOC Mission Delta 4. The Delta is the first system delta of the USSF. SYD 84 is part of the USSF's new structure to consolidate acquisition and support SpOC Mission Deltas.
System Delta 810 (SYD 810) is a unit of the United States Space Force (USSF) that was activated at Los Angeles Air Force Base on July 10, 2025 as a part of USSF Space Systems Command. Col. Dane Bannach assumed command of the unit as its first leader. The unit is responsible for Space-Based Sensing and Targeting (SBST) including Environmental Monitoring and Tactical Sensing. It also provides global cloud forecasting and theater weather imagery, for mission operations, planning and execution. It will be linked to its partner delta SpOC Mission Delta 2. SYD 810 is part of the USSF's new structure to consolidate acquisition and support SpOC Mission Deltas. It was, along with System Delta 84 - the second SYD created by the USSF. In January 2026, SYD 810 began the process of transitioning away from legacy weather satellites and began the acquisition process to find new high resolution compact imagers, space weather sensors to monitor solar activity, modular spacecraft platforms such as CubeSat to replenish or augment the existing constellation, and AI/ML processing software solutions to provide real-time “theater weather” to ground commanders.
The Convair F-102 Delta Dagger is an interceptor aircraft designed and produced by the American aircraft manufacturer Convair. A member of the Century Series, the F-102 was the first operational supersonic interceptor and delta-wing fighter operated by the United States Air Force (USAF). The F-102 was designed in response to a requirement, known as the 1954 Ultimate Interceptor, produced by USAF officials during the late 1940s. Its main purpose was to be the backbone of American air defences and to intercept approaching Soviet strategic bomber fleets (primarily the Tupolev Tu-95) during the Cold War. The aircraft was designed alongside a sophisticated fire-control system (FCS); however, a simplified unit had to be adopted due to development difficulties. It used an internal weapons bay to carry both guided missiles and rockets. On 23 October 1953, the prototype YF-102 performed its maiden flight; however, it was destroyed in an accident only nine days later. The second prototype allowed flight testing to resume three months later, but results were disappointing: as originally designed, the aircraft could not achieve Mach 1 supersonic flight. To improve its performance prior to quantity production commencing, the F-102 was redesigned, its fuselage was reshaped in accordance with the area rule while a thinner and wider wing was also adopted. Flight testing demonstrated sufficient performance improvements for the USAF to be persuaded to permit its production; a new production contract was signed during March 1954. Following its entry to USAF service in 1956, the F-102 promptly replaced various subsonic fighter types, such as the Northrop F-89 Scorpion, in the interceptor role. The F-102C tactical attack model, equipped with several improvements, including a more powerful engine and Gatling gun, was proposed but not ultimately pursued. A total of 1,000 F-102s were built, both for the USAF and a handful of export customers, including the Hellenic Air Force and the Turkish Air Force. By the 1960s, USAF F-102s had participated in a limited capacity in the Vietnam War as a bomber escort and even in the ground-attack role. The aircraft was supplemented by McDonnell F-101 Voodoos and, later on, by McDonnell Douglas F-4 Phantom IIs. Over time, many F-102s were retrofitted with infrared search/tracking systems, radar warning receivers, transponders, backup artificial horizons, and modified fire-control systems. Throughout the mid-to-late 1960s, many USAF F-102s were transferred from the active duty Air Force to the Air National Guard, and, with the exception of those examples converted to unmanned QF-102 Full Scale Aerial Target (FSAT) drones, the type was totally retired from operational service in 1976. Its principal successor in the interceptor role was the Mach 2-capable Convair F-106 Delta Dart, which was an extensive redesign of the F-102.
Delta II was an expendable launch system designed and built by McDonnell Douglas, sometimes known as the Thorad Delta 1. Delta II was part of the Delta rocket family, derived from the Delta 3000, and entered service in 1989. There were two main variants, the Delta 6000 and Delta 7000, with the latter also having "Light" and "Heavy" subvariants. During its career, Delta II flew several payloads, including 24 Global Positioning System (GPS) Block II satellites, several dozen NASA payloads, and 60 Iridium communication satellites. The rocket flew its final mission, ICESat-2, on 15 September 2018, earning a streak of 100 consecutive successful missions, with the last failure being GPS IIR-1 in 1997. In the late 1990s, Delta II was developed into the unsuccessful Delta III, which was in turn developed into the more capable and successful Delta IV, though the latter shares little heritage with the original Thor and Delta rockets.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Mae Jemison, aboard Space Shuttle Endeavour in 1992.