December 15th

3 documented paranormal events occurred on this day, spanning 1900 to 2010. Browse hauntings, UFO sightings, cryptid encounters, and unexplained phenomena recorded throughout history.

1 UFO 1 Cryptid 1 Other

Selected from December 15th

Featured cases

Images show an air traffic control room, radar screen, and flight display, demonstrating the cognitive load associated with multi-tasking for complex tasks.

UFO 2010

AAWSAP DIRD: Cognitive Limits on Simultaneous Control of Multiple Unmanned Spacecraft, December 15, 2010 — Department of War Research Paper

Las Vegas, Nevada

This DIRD examines how many unmanned spacecraft a single human operator could realistically supervise or control at once, using research from air traffic control and multi-vehicle remote piloting as rough analogs. The report argues that the practical limit depends heavily on task complexity:…

All cases · December 15th

Every event recorded on this day

2010 UFO AAWSAP DIRD: Cognitive Limits on Simultaneous Control of Multiple Unmanned Spacecraft, December 15, 2010 — Department of War Research Paper Las Vegas, Nevada
1967 Cryptid Silver Bridge Collapse and Mothman Point Pleasant, West Virginia, USA
1900 Other The Eilean Mor Disappearance Eilean Mor, Flannan Isles, Scotland