Recent massive volcanoes have risen from the ocean floor deep under the Arctic ice cap, spewing plumes of fragmented magma into the sea, scientists who filmed the aftermath have reported.

* Yes - Orangutans need all the help they can get. * Maybe - Palm oil is in so many products. * No - Palm oil represents important income for the people of Borneo and Sumatra.

From wild speculation in financial markets to believing that aliens are visiting us, humans are prone to all sorts of personal and mass delusions - and have been for centuries.

From crop circles and alien abductions to faith healers, many secretly believe in strange phenomena - and it has more to do with human psychology than with reality.

Stars more than one million times as massive as the Sun may be more stable than astronomers thought, and have created seeds that grew into the largest supermassive black holes.

Volcanic activity may split Africa in two, creating a new ocean. This is due to a geological crack which has appeared in northeastern Ethiopia, say experts.