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Wed, 20 Nov 2019
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Fireballs

Fireball 2

17 meteorites hit Earth everyday

Meteor Over Minsk
© SERGEI GAPON/AFP/Getty Images
A meteor crosses the night sky over a statue of Jesus Christ in the village of Ivye some 125 kilometres west of Minsk, in 2016.
Every year, the Earth is hit by about 6100 meteors large enough to reach the ground, or about 17 every day, research has revealed.

The vast majority fall unnoticed, in uninhabited areas. But several times a year, a few land in places that catch more attention.

Three months ago, for example, a small asteroid probably about the size of a minivan, flashed across the midday sky and exploded over western Cuba, showering the town of Viñales with falling rocks, some of which reportedly landed on rooftops.

Nobody was hurt, but it was a reminder that just as it's not safe to turn your back on the ocean for fear of being washed out to sea by an unusually large wave, space hazards are also capable of catching us by surprise.

To calculate how often such meteor falls occur, Gonzalo Tancredi, an astronomer at the University of the Republic in Montevideo, Uruguay, examined a database of incident reports, discovering that in the last 95 years people have directly observed 95 such events - an average of about eight per year.

To figure out how many others occur unobserved, Tancredi noted that people only occupy a tiny fraction of the Earth's surface - about 0.44% of its land area, or 0.13% of its total surface area.

That means that for every impact that is actually seen by someone, another 770 splash into the sea or fall in a desert, forest, or other locations so remote that nobody sees it happen.

"Some places on the Earth are heavily populated," Tancredi says, "but most places are very lowly populated."

Fireball 5

Mysterious flash and boom in the sky 80 years ago terrified residents of Portland, Oregon

1930 meteor
© The Oregonian (Archives)
A 1930 "meteor fireball".
The flash of bright light surprised everyone who saw it. Hundreds of Portlanders reported spotting "a vast burst of smoke and spurting flame."

The explosion that followed was even more startling. The shock wave reverberated across the sky for miles, shattering windows and cracking walls.

A recreational mountain climber might have had the best view.

"I was standing still for a moment, looking toward Portland," recalled Thurston Skei, who was working his way up Mount Adams just before 8 a.m. on July 2, 1939. "I saw a trail of smoke coming down through the sky. There was a bright flash at the head of the smoke column as if a huge rocket had exploded."

A few people called police to ask if Martians had attacked. (This was nine months after Orson Welles' War of the Worlds radio broadcast had confused and worried listeners.) Many more residents thought there had been an earthquake. (The Oregonian reported that the University of Washington's seismograph had remained quiet.)

House

Houses rocked after 'unexplained big boom' in southeast suburb of Queensland

Loud boom in QLS, AUS
© The Courier Mail
Residents of a southeast suburb are scratching their heads after experiencing a loud "boom" and feeling the earth shudder early on Sunday evening.

Cornubia resident Shaun Pask said his West Coorang St house was rocked by the event which took place just before 6pm.

Mr Pask said he felt as if a large object had hit the roof of his house.

"My wife and I were inside when we experienced the house shuddering - it was so loud I could not image any handheld device could possibly create that amount of noise," he said.

"It was not a small object hitting a small part of the roof - it was like something fell from the sky and it landed on our whole roof at the one time.

Fireball

Meteor Fireball seen streaking through skies in Rio de Janeiro, Brazil

brazil meteor fireball april 26th 2019
Another big fireball was seen in Brazilian skies at 20:08 (23:08 UT) this Friday, April 26, 2019. This time, the bright meteor was reported in the north of Rio de Janeiro and east of Minas Gerais and recorded by BRAMON's cameras.

The space rock entered Earth atmosphere at an altitude of 80.8 Km over Rio das Flores, RJ, followed a northeasterly direction at a speed of 19.14 Km / s (68.9 thousand Km / h) before disappearing 5.67 seconds later, at an altitude of 38.4 Km over Argirita, MN.

Comment: Activity in our skies is really heating up:


Book 2

A Book Review - Prehistory Decoded

Gobekli Tepe
© Wikipedia Commons
Any follower of Catastrophism the last few years has seen extraordinary confirmations of ancient cataclysm and novel contributions to our way of thinking. To the Tusk, three revelations have characterized the period: The discovery of an extraordinarily youthful late Pleistocene crater in Greenland; a series of popular, comprehensive and unrefuted major journal articles which exquisitely defined hard evidence for the Younger Dryas impact catastrophe; and the singular contribution of Dr. Martin Sweatman, as made in his fabulous book, Prehistory Decoded.

Dr. Sweatman has done our planet and history a tremendous favor by writing Prehistory Decoded. By employing the hard science of probability, he has managed to demystify the world's very earliest and most mysterious art.

Prehistory Decoded begins by documenting Sweatman's initial discovery, reported worldwide in 2015, of an empirical method for decoding the world's first art using pattern matching and statistics. Guess what? The code is a memorial and date stamp for our favorite subject here: the Younger Dryas Catastrophe, and its associated Taurid meteor traumas.

Sweatman has managed to produce a synthesis explanation for the previously indecipherable succession of artistic animal figures at Gobekeli Tepe in Turkey, Chauvet Cave in France, Lascaux Cave in France, and Çatalhöyük in Turkey, among others. Unsurprisingly to the open minded, the ancient artists are communicating using a universally handy and persistent reference set: Stars. Or, more precisely, the appearance of constellations as adjusted over time according earth's precession.

(Don't you love the internet? One hyperlink and no need to explain all that!)

It seems reasonable then to the Tusk that, if there were a code, someone, somewhere, would break the code soon given the global availability and intense interest in the information. In fact, if I waited much longer without someone cracking it, the Tusk may have become convinced the oldest art is simply stunning cave paintings, and heavy carved rocks, with no relevant common narrative (other than horses are pretty, and moving rocks is cool).

Question

Loud, home-shaking boom heard in Branson, Missouri area

Mystery boom (stock)
© KY3
Did you hear a boom Tuesday afternoon, too?

Several viewers from Branson to Mountain Home shared with us they heard a loud boom around 4 p.m. They also say the boom shook their homes.

Taney County Sheriff Jimmie Russell says his office received several calls throughout the county. He doesn't know exactly what it is. He believes it could be a sonic boom. As for what this is, when we find out, we'll let you know.

The Ozarks has a history with these type of 'booms.' When they happen, law enforcement say they receive 60 to 75 calls.

Comment: See also: Loud booms heard, felt in northern Arkansas and south central Missouri.


Fireball 2

International space agencies team up to practice for an asteroid striking Earth

Asteroid Strike
© Pixabay
You've gotta hand it to America's space scientists: they're resilient. Despite an admission that they may not be able to stop the asteroid Bennu from turning Earth into a smoldering crater filled with the ashen remains of its human inhabitants, NASA's Planetary Defense Coordination Office (PDCO) has teamed up with FEMA and other agencies for what amounts to a wargaming exercise to prepare themselves for a catastrophic asteroid strike.

The best part of this? The ESA is tweeting out bits and pieces of the scenario - that an asteroid named 2019PDC has been spotted and calculated to have a 1 in 100 chance of striking Earth - as if it were happening in real time. The agency has wisely hashtagged the relevant tweets with #FICTIONALEVENT to avoid any War of the Worlds scenarios.


Fireball

Meteor fireball explodes over Costa Rica, possibly crashes into home

Meteor over Costa Rica
© Edgar Chinchilla
A large meteor fireball exploded in the sky over Costa Rica on April 23, 2019 at 9:09pm.

People reported seeing flashes in the sky. Others reported hearing loud booms and feeling rumblings.

On the same evening a rock fell from the sky, making a hole in a roof in Aguas Zarcas, San Carlos, Alajuela. Now experts will analyse the rock to determine its origin. But I bet it is a meteorite!

The woman who found the space rock in her house explains she heard a loud rumble, went to the back of her house, discovered the hole in the roof and found the warm rock on the floor.

Now, cosmochemist (I am one of those :-)) will have to analyse the chemical composion of the rock to determine where this rock comes from... But it is ... the meteorite!


Comment: Just two weeks earlier, a bright meteor fireball was filmed streaking through Puerto Rico skies.


Fireball

Northern Ireland meteorite crash remembered 50 years on

Terence Murtagh speaking to UTV about the meteorite 50 years on.
© UTV
Terence Murtagh speaking to UTV about the meteorite 50 years on.
Some of those who witnessed the Bovedy meteorite which crashed in Northern Ireland 50 years ago have been remembering the event at the Armagh Planetarium.

The meteorite is named after the townland near Kilrea where it fell on 25 April 1969.

It had been seen passing over the South East of England and over Wales before it crashed - and was described as looking like a shooting star or fireball as it fragmented coming into land.

It was found three days later and had broken into two traceable pieces, one which had fallen through the roof of a shop in Lisburn and the other on a farm in Bovedy.

Former director of the planetarium Terence Murtagh is one of those who saw the shooting star and helped locate it after it fell to Earth.

Fireball 4

'Green meteor' streaks across skies of northern Melbourne, Geelong, Australia Easter weekend

Fireball - stock image

Stock image
While locals around Geelong and Wyndham have been enjoying their Easter break, some have experienced an extra special moment.

Following Good Friday's supermoon, a meteor was also seen darting across the sky on Easter Saturday.

The brief, but bright, event occurred around 6:53pm in the northern part of the Melbourne and Geelong sky.

So far, the newsroom can confirm it was seen in Glen Waverley and Werribee in Melbourne, as well as Mildura, Swan Hill and the Murray River.