Discussion in 'Free Fire Zone' started by Biak, Nov 2, 2011.
No, that was the follow-up series to this one (UFO)-
(Credit: Psychedelic Lounge, Facebook).
good movie. thumbs up
"How to not store firearms safely."
Double whammy today.
"crater left by a giant meteor that crashed into the Earth 800,000 years ago - spreading rocky debris across the planet - is finally found by scientists.
The meteor impact has been known about for more than a century but the location has been a mystery, the team from Singapore said.
Researchers from Nanyang Technical University in Singapore claim it was buried under volcanic lava on the Bolaven Plateau in southern Laos.
The team created a 'gravity map' of the area and discovered an 'elongated crater' under the rock that was about 300ft thick, 8 miles wide and 11 miles long.
Discovering the location of the crater could help to predict what we might expect if a similarly large asteroid were to hit again, says Kerry Sieh, study author. "
"Evidence of a previously unknown ice age that occurred millions of years ago has been discovered in the north west Highlands, scientists say.
University of Aberdeen geologists have found features in rocks in Torridon caused by pebbles falling from melting icebergs to the bottom of lakes.
The rocks date to a "relatively calm" period in the Earth's evolution dubbed the "boring billion".
The geologists said it was the first evidence of glaciation at this time.
The boring billion took place from 1,800 to 800 million years ago."
Not nearly as boring as steaming "Surf to Turf" in the Persian Gulf for months at a time.
"Earth’s oldest asteroid strike was at Yarrabubba, in Western Australia’s outback, around 2.229 billion years ago, Aussie scientists have confirmed.
Team from Curtin University in Perth used isotopic analysis of minerals to calculate the precise age of the 43-mile-wide impact crater for the first time.
The asteroid strike that created the crater occurred 200 million years before the next oldest impact at Vredefort in South Africa.
The Yarrabubba impact structure is regarded as one of Earth’s oldest, but until now lacked a precise age.
‘Yarrabubba, which sits between Sandstone and Meekatharra in central WA, had been recognised as an impact structure for many years, but its age wasn’t well determined,’ said Professor Chris Kirkland at Curtin University.
The Earth has a continually changing surface due to tectonics and erosion, which means that very old impact craters are difficult to identify.
The team analysed the minerals zircon and monazite that were ‘shock recrystallized’ by the asteroid strike, at the base of the eroded crater to determine the exact age of Yarrabubba.
At 2.2 billion years old, Yarrabubba is around half the age of Earth itself – 4.5 billion years."