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Fri, 06 Dec 2019
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Fireballs

Fireball 4

Meteor fireball videoed over Lake Mendota, Wisconsin

Fireball over Lake Mendota
© Madison
Did you see it?

A Sunday morning tweet from NOAA's Cooperative Institute for Meteorological Satellite Studies at the UW-Madison showing a meteor flashing over Lake Mendota drew a host of "oohs" and "ahhhs".

Fireball 3

Meteor fireball lights up night sky over northern New England

Fireball Streaks Across New England Sky

Fireball streaks across New England sky
People around Greater Boston, down to Connecticut, and up into Northern New England spotted a streak of light cross the sky during the Friday evening commute.

It's what's called a "fireball."

When objects enter Earth's atmosphere, they encounter intense heat and burn up. That process creates the streak of light seen in the sky, as seen in the photo above.

While unusual, these are spotted around New England from time to time.


Info

Impact crater in Australia happened far more recently

Wolfe Creek Crater Australia
© Stephan Ridgway/Flickr/CC BY 2.0
In the state of Western Australia sits the famous Wolfe Creek crater, the aftermath of a 14,000-tonne meteorite crashing into Earth thousands of years ago. A new study now claims the impact happened far more recently than we suspected, prompting a rethink on how often giant space rocks actually strike our planet.

A team of researchers from universities in Australia and the US took a close look at several features of the crater's underlying rock to get a precise measurement on the age of Wolfe Creek's most famous landmark.

Previous estimates have stated the crater could be 300,000 years old, but the new result places it much closer to our time, perhaps as little as 120,000 years ago. And knowing this is not just a geological curiosity, either.

As far as neat-looking craters go, they don't tend to be much bigger. With little rain to wear away the walls of the impact site, Wolfe Creek crater has been remarkably well preserved throughout the ages. But the site also stands out for the fact it is the second largest crater on Earth to still have fragments of the offending space rock.

There's no doubt the shrapnel of far bigger blasts exist out there somewhere, but with ocean and ice covering so much of our planet's surface, and wind and rain eating away at the geology, evidence is hard to come by.

Fireball

Meteor fireball lights up sky in Costa Del Sol, Spain

Fireball over Costa Del Sol, Spain
© EuroWeekly
Star gazers had a treat in the early hours of today (November 20) as a slow ball of fire graced the sky above the Costa del Sol in Spain.

The impressive sight was a rock from a comet that entered the Earth's atmosphere at a speed of about 47,000 kilometres per hour at 3.48 am.

The event began at an altitude of about 81 km off the coast of Malaga. From there the fireball advanced in a northeasterly direction. It was finally extinguished at an altitude of 38 km above sea level, at a point about 78 km off the coast of Malaga and 83 km off the coast of Morocco, after a trajectory of 81 km in the atmosphere.


Comment: Another fireball was seen over Spain five days before and was filmed by the SMART project:




Fireball 5

Kilkenny, Ireland early risers spot giant meteor fireball in the frosty sky

Fireball (stock)
© TravelLife/Shutterstock
Stock image
A giant fireball was spotted streaking over Kilkenny's frosty sky early this morning.

Some reports are saying it was a meteorite, while some claim it landed in neighbouring Carlow.

At 5.20am this morning, the flashing fireball was seen by those up early for work, or those out for an early morning run. The huge fireball illuminated the frosty and foggy sky as it shot over.

A spokesperson for Astronomy Ireland confirmed the sighting but are now seeking the public's help for more information about the sighting.
Another fireball this morning over Ireland, about 5.20am. Did any of you see it?
Fireballs occur when tiny meteor enter and then burn up in the Earth's atmosphere. The last reported meteor to land in Carlow was found in Leighlinbridge in 1999.

Comet 2

Leonid meteor shower light up night sky with spectacular shooting stars

Leonid meteor shower
© Reuters / Ali jareji
One of the most famous annual meteor displays, the Leonid shower, is peaking this weekend and even though this year's show could be a downer, stargazers will still be treated to occasional spectacular fireballs and shooting stars.

The Leonid is expected to be best visible in the early hours of the morning on Monday, between 2am and 4am.

Fireball 4

Asteroid the size of the Great Pyramid could hit Earth in 2022

Asteroid
© Creative Commons
Scientists from the American space agency claim that asteroids the size of a football field collide with our planet every 2000 years, with another giant rock now heading towards the Earth.

NASA just announced when a giant asteroid, known as JF1, would hit Earth if it continues on its current trajectory - and it's not too far from now.

The American space agency predicted that a 128-meter-long space rock - the size of the Great Pyramid of Giza in Egypt - could collide with our planet on 6 May 2022, potentially causing devastating consequences by wiping out an entire city just in seconds and causing millions of deaths.

As JF1 is believed to strike the Earth with a power of 230 kilotons of TNT - 15 times higher than the atomic bomb dropped on Hiroshima that was equivalent in energy to 15 kilotons of TNT.

Attention

Adapt 2030 Ice Age Report: This cycle is going to be different

US arctic blast
© YouTube/Adapt 2030 (screen capture)
With heavier more powerful cycles at our door step we as a society need to have conversations on global food security. We as a species have even forgotten major celestial events as recently as 200 years with the meteor shower of 1833 in SE USA and the Carrington event that aurora were seen in South America. Now this year unprecedented blizzards, Arctic freezes cover the N. Hemisphere and the coldest temperature ever recorded in October in the N. Hemisphere in Utah. Changes have begun.


Comment: See also:


Comet 2

Amateur Crimean astronomer discovers new comet in solar system: C2019V1 (Borisov)

New Comet Borisov
© NASA/JPL-Caltech/UCLA
Gennady Borisov has been contacted by the International Astronomical Union about his latest discovery.
Not content with leading NASA to detect water from an alien star system on board an interstellar visitor, Crimean amateur astronomer Gennady Borisov has discovered another comet.

The new comet, traveling at roughly 30km per second in the patch of sky between the Lynx and Cancer constellations, marks the ninth stellar object Borisov has discovered. Unlike his previously discovered comet, dubbed 2I/Borisov, this one is a resident of our solar system.

"I discovered a new comet in early November. I have just received a letter from the Minor Planet Center of the International Astronomical Union. This is not an interstellar comet. It's an ordinary one, which is a solar system object. It got the name C2019V1 (Borisov). This is a confirmed discovery," Borisov told TASS news agency.

Fireball

Spectacular meteor fireball caught on camera above St. Louis, Missouri - Event seen from across US Midwest

Fireball over St.Louis
© Screenshot/AMS American Meteor Society
Earthcam footage captures the moment in which a fireball streaks across the Missouri nighttime sky near St. Louis' Gateway Arch.
Hundreds of local residents across the US state of Missouri were given front row tickets to a meteor show late Monday after a flaming rock streaked across the nighttime sky.

Local news station KMOV reported that the jaw-dropping meteor was spotted "from Columbia to St. Charles County and into St. Louis County and south St. Louis City," before disappearing into the night over Wellsville.

Reports of a fireball - a bright, slow-moving meteor - began to emerge at roughly 8:45 p.m. local time, with some residents reporting that the flashing rock was accompanied by the sound of a loud boom.

Comment: No, no, no. You CANNOT predict these things.

These are NOT the teensy-weensy flits you see during meteor showers. Those are 'shooting stars'.

These other things are LARGE CHUNCKS OF SPACE ROCK EXPLODING IN THE ATMOSPHERE.