Ring-like patterns in the sky could be ghostly imprints of a universe that existed before the big bang, according to a controversial new study. If the theory is correct, the cosmic rings may be the ...

A seascape with seagrass patterns at the Bay of Pollença, on the Island of Mallorca, Balearic Islands, Spain. Damia Gomila A mathematical model shows that special vegetation patterns in seagrass ...