In certain tracts of ocean, divers know to look for “underwater crop circles,” ornate symmetrical patterns temporarily carved into the sandy sea floor. But since 1995, when they were first discovered ...
Serious studies of crop circles have long been hampered by conspiracy theories and the secretive nature of circle-makers – plus scientists' reluctance to engage with a "fringe" topic. But, as Richard ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback