While climbing through FL290 departing Johannesburg, South Africa, a commercial airline captain and first officer observed a delta-shaped craft moving directly toward their Boeing 737-800 in clear conditions. The object, described as a perfectly equilateral triangle approximately half the size of their aircraft, passed overhead within an estimated 200 feet at high velocity on an opposite heading. The craft displayed intense white/gold luminosity underneath that faded to metallic coloring, with what appeared to be a field around it giving the impression of atmospheric reentry effects. No traffic alerts were displayed on cockpit systems, no TCAS warnings activated, and ATC reported no radar contact.
The published account
ASA analyst notes
Reported descriptions and estimates are attributed to the witness or published source. This page does not independently establish the object’s identity, origin, or reported capabilities.
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