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."
Doesn't sound like a natural phenomenon with that timescale.
"Astronomers have identified the first reliable pattern of a fast radio burst (FRB) source in deep space, but still don't know what causes the phenomenon.
Such signals have baffled scientists since their discovery in 2014, as their origin is a complete mystery.
But scientists have now found one sporadic radio burst source 500 million light years away expressing a specific pattern.
It belts out a signal for a few milliseconds once every hour, every hour for four days. It then goes silent for 12 days before resuming its 16 day cycle.
This is the first time a FRB pattern has been spotted by astronomers but the underlying reasons are unknown.
However, scientists have all but ruled out alien communication as 16 days for a message would be impractical and inefficient"
"Nineteen asteroids that once belonged to a distant star system have been found orbiting the sun between Jupiter and Neptune.
They have been circling the sun for more than 4.5billion years, since the very inception of the solar system.
Astronomers believe the space rocks were ripped from their original location as the universe expanded and the sun grew rapidly, creating its own gravitational pull.
The enormous force of the burgeoning star sucked the rocks into the formative solar system and they have remained here ever since, astronomers believe.
The findings come more than two years after astronomers spotted the first interstellar visitor, the asteroid known as 'Oumuamua.
The asteroids belong to a group of objects called Centaurs.
Fathi Namouni, of Observatoire de la Cote d'Azur in France and lead author of the study, said: 'The close proximity of the stars meant that they felt each other's gravity much more strongly in those early days than they do today.
'This enabled asteroids to be pulled from one star system to another.'
Dr Namouni and co-author Maria Helena Morais, of the Universidade Estadual Paulista in Brazil, ran computer simulations dating back billions of years.
They revealed the asteroids were orbiting the Sun on a plane perpendicular to planetary motion at that time.
At the time, matter was scattered around the infantile sun and gravity was turning the detritus into rocky planets, what would eventually take the form of Mercury, Venus, Earth and Mars."
I still remember sitting glued to the television watching every minute of the Apollo missions.
And now we get views like this;
Our home world from afar | EarthSky.org
That's wonky. The Earth and the Moon rotate on the same plane, pretty much.
But the camera wasn't ;
a flyby on april 29
First glimpses of large asteroid due to pass soon | EarthSky.org
i remember a tv series from the 70's where one episode showed a giant haley's comet bearing down. worried me then- like todays greta and her virtuous worry for the polar bears.
no love for the dinosaur though.
"The European Space Agency’s orbiter has been circling Mars for nearly four years and has recently made an astonishing discovery – glowing green oxygen in the atmosphere.
Astronomers have predicted the existence of the emission for 40 years, but now has proof of its presence.
The glow was found to be the strongest at an altitude of over 262,000 and is caused by the sunlight combining with atoms and molecules in the air.
Not only is this the first time the emissions have been spotted on Mars, but it is also the only case found on any other planet in the solar system.
The Earth has a green night glow that has been seen by astronauts aboard the International Space Station, but appears fainter than what was seen around Mars.
Jean-Claude Gérard of the Université de Liège, Belgium, and lead author of the new study, said: ‘One of the brightest emissions seen on Earth stems from night glow. More specifically, from oxygen atoms emitting a particular wavelength of light that has never been seen around another planet.’"
If they spot blue flame emissions, they will have discovered life on Mars... in the form of bored teenagers on a Saturday night.
A recent meteor was seen glowing green through our atmosphere I wonder if the oxygen was the reason behind the colour...looking at the pictures of Earth reminded me that the moon is roughly the width of Australia, so Australia from the moon looks about the same size as the moon from Earth.
But the Moon is more interesting.
Oh f..k off... : )
still, kind of dick-ish.
yeah, dont want to get into that.