Gen Nakatani responded to questions about the UFO phenomena during a meeting last week.
Lake Baikal in Siberia has been home to a spate of peculiar sightings and strange tales in recent years.
The gargantuan reptile was related to the Titanosaurs and roamed the Earth around 100 million years ago.
There could be two potentially habitable planets in a binary star system just 4.3 light years away.
A genome study has pinpointed when mankind's most recent common male ancestor would have lived.
The West Midlands Police have received 152 reports of unexplained phenomena over the last five years.
The English monarch's remains were discovered beneath a car park after being lost for over 500 years.
Donna Ayres claims she has been plagued by paranormal experiences for more than five years.
A ferocious crocodile that walked on two legs proved a fearsome predator before the age of the dinosaurs.
The remains of two pretzels dating back 250 years were discovered beneath the floor of an old bakery.
The discovery has pushed back the emergence of the earliest humans by up to 400,000 years.
The popular Simpsons character apparently calculated the particle's mass 14 years before its discovery.
A leading surgeon believes it will soon be possible to perform a real-life head transplant on a human.
Researchers have created a responsive artificial limb that can be controlled directly by the brain.
A bronze statue dating back up to 1,000 years has been found to contain the remains of a Buddhist monk.
Scientists have suggested that dark matter might be the main culprit in mass extinction events.
A red dwarf star is thought to have passed within one light year of our planet 70,000 years ago.
Scientists have been left scratching their heads over a 1,000km plume spotted high above the planet Mars.
Concerns were raised when bright blue snow started to turn up on the streets of Chelyabinsk.
The final 100 applicants shortlisted to embark on a one-way trip to Mars will be announced next week.