Aliases

Disambiguation

NOT to be confused with: (1) ordinary meteors/shooting stars (too faint); (2) bolides (fireballs that explode with visible fragmentation); (3) artificial debris or satellite re-entry. In UFO/UAP historical context, 'green fireballs' specifically denote the class of luminous phenomena reported 1948–1951 in southwestern US, distinct from natural meteorological fireballs by reported anomalous behavior (directional changes, sustained hovering).

Stats

Concept

An exceptionally bright meteor (visual magnitude −3 or brighter) produced by large meteoroids entering Earth's atmosphere at high velocity. In UFO/UAP historical context, refers also to anomalous luminous phenomena—especially the 'green fireballs' of 1948–1951 southwestern US—exhibiting behavioral characteristics (directional changes, sustained altitude, lack of smoke) inconsistent with natural bolides.

Um meteoro excepcionalmente brilhante (magnitude visual −3 ou mais brilhante) produzido por grandes meteoroides entrando na atmosfera terrestre em alta velocidade. No contexto histórico de UFO/UAP, refere-se também a fenômenos luminosos anômalos—especialmente os 'green fireballs' de 1948–1951 no sudoeste dos EUA—exibindo características comportamentais (mudanças direcionais, altitude sustentada, falta de rastro de fumaça) inconsistentes com bolides naturais.

Enrichment

• Fireballs and Bolides
  NASA Planetary Defense Coordination Office / JPL▎ high· 2026-05-14
  • Fireball defined as meteor reaching visual magnitude −3 or brighter
  • Caused by large meteoroids (>1 meter) entering atmosphere at high velocity
  • Heating caused by air compression, not friction
  • Objects typically do not survive intact; fragments sometimes recovered as meteorites
• Fireball FAQs
  American Meteor Society▎ high· 2026-05-14
  • Fireball = very bright meteor, magnitude −4 or brighter (Venus-equivalent brightness)
  • Bolide = fireball that explodes in terminal flash with visible fragmentation
  • Thousands occur daily globally; most undetected due to ocean/daytime coverage
  • Observers encouraged to report with brightness, trajectory, color, duration data
• Green Fireballs
  Wikipedia▎ high· 2026-05-14
  • Green fireballs reported starting December 1948 over New Mexico
  • Military and civilian observers noted unusual characteristics (flat trajectory, no smoke trail)
  • January 1949 Army Intelligence memo speculated radiological warfare origin
  • February 1949 Los Alamos scientific conference (Teller, Kaplan, et al.) left origin undetermined
  • Project Twinkle (Dec 1949–1951) concluded 'likely natural' but unidentified
• Presidential Unsealing and Reporting System for UAP Encounters (PURSUE)
  U.S. Department of War▎ high· 2026-05-14
  • Pentagon released 162 declassified documents on May 8, 2026
  • Records span 1945 to late 2025, including fireballs and green fireball sightings
  • Early documents (1948–1950) discuss New Mexico fireball wave and military security concerns
  • Records posted to war.gov/UFO with rolling release schedule