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Author Topic: Fireballs, comets, meteorites, meteors and asteroids  (Read 101400 times)

R.R. Book

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #570 on: April 16, 2018, 04:41:20 PM »
What's even more scary than a giant rock hurtling toward us is that it may also be both electrically charged from zooming through space, as well as radioactive and magnetic depending upon mineral content... :-X


ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #571 on: April 16, 2018, 06:04:24 PM »

I got this notice in email from NASA about a surprise asteroid that gave us only one day of warning passing halfway between the Earth and the moon. It was the largest known asteroid to ever pass that close to Earth in observational history.
Max.
And they just keep coming....  It's like we're living on borrowed time....

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #572 on: April 29, 2018, 10:52:58 AM »
Tick, Tock, Tick ..

Incoming close calls! NASA says 5 'close' asteroid flybys will take place today

https://www.sott.net/article/384212-Incoming-close-calls-NASA-says-5-close-asteroid-flybys-will-take-place-today

The Earth will experience a number of (relatively) close calls in one day, as NASA reports that an alarming total of five asteroids will hurtle towards - but happily not quite at - our planet.

The Center for Near Earth Object Studies at NASA's Jet Propulsion Laboratory in California publishes a comprehensive list of space rocks that are worth keeping an eye on, just to prepare yourself for any potential armageddons or extinction-level collisions. These rocks can range in size from a few meters in length to asteroids more akin to skyscrapers.

The series of space rock flybys begins at 10:29 UTC Sunday as asteroid 2013 US3, travelling at a respectable 7.69 km/s (27,646 kph) with a diameter of between 160-360 meters whizzes past us. For comparison, the Eiffel Tower measures 324 meters from ground to tip.

Next up are asteroids 2018 GO4 and 2018 GY1, which are expected to scream past us at 12:34 and 18:20 UTC respectively.

Asteroid 2018 GO4 measures approximately 30-68 meters (between three and six school buses in diameter) and has a brisk pace of 8.57 km/s. Meanwhile, 2018 GY1, on the other hand, won't be hanging around our neck of the galactic woods for long given that it travels at a whopping 16.69 km/s, despite measuring 100 and 230 meters in diameter.

Closing the day's near orbit rock show will be asteroid 2028 FV4 at 19:13 UTC (at 6.52 km/s) followed two hours later by 2002 JR100 at 21:15 UTC (7.68 km/s), both with a diameter of roughly a Boeing 747 (between 60 and 71 meters). Thankfully, the rocks are projected to hurtle past us at the relatively safe distance of 3,870,720 km (roughly 10 times further away than the moon is from Earth), so we needn't worry too much.

Should similar space rocks come a little too close for comfort, NASA is working on inventive ways to make sure we don't go the way of the dinosaurs, including nuclear detonations and intense laser blasts (How very comforting ..)

Max.
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

R.R. Book

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #573 on: April 30, 2018, 10:00:50 AM »
 :o

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #574 on: May 17, 2018, 05:38:59 PM »
Meteor fireball seen in skies above Fredericksburg, Virginia

https://www.sott.net/article/385809-Meteor-fireball-seen-in-skies-above-Fredericksburg-Virginia

Fredericksburg-area residents reported that an object from outer space tore through the sky Tuesday, just before midnight, leaving in its wake a sonic boom heard by residents from Culpeper to Colonial Beach.

The meteor was "the brightest and most amazing fireball I've ever seen, in person or in any videos," wrote Chase K. of Dahlgren in his report to the American Meteor Society. The night sky appeared like a giant lightning strike and it was almost as bright as daylight when the primarily red and orange fireball was seen, he said.

He didn't notice any sound, but an observer who identified himself as William G. of Colonial Beach wrote in his report to the society that there was a loud boom and "ground shake similar to a military artillery round.”

Max.
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #575 on: June 05, 2018, 02:27:39 PM »
Watch: Asteroid Explodes Over South Africa – Just Hours After Being Discovered

http://www.thedailysheeple.com/watch-asteroid-explodes-over-south-africa-just-hours-after-being-discovered_062018

The incredible moment a high-speed asteroid the size of a car exploded just seconds before impact was captured on video by two farmers in South Africa.  :(

From NASA’s Jet Propulsion Laboratory:

    A boulder-sized asteroid designated 2018 LA was discovered Saturday morning, June 2, and was determined to be on a collision course with Earth, with impact just hours away. Because it was very faint, the asteroid was estimated to be only about 6 feet (2 meters) across, which is small enough that it was expected to safely disintegrate in Earth’s atmosphere. Saturday’s asteroid was first discovered by the NASA-funded Catalina Sky Survey, located near Tucson and operated by the University of Arizona.

The asteroid entered Earth’s atmosphere at the high speed of 10 miles per second (38,000 mph, or 17 kilometers per second) at about 16:44 UTC (9:44 a.m. PDT, 12:44 p.m. EDT,6:44 p.m. local Botswana time) and disintegrated several miles above the surface, creating a bright fireball that lit up the evening sky, NASA reports.

Max.
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #576 on: June 25, 2018, 03:35:04 PM »
The incredible moment a blazing ‘fireball’ asteroid explodes above Russia while travelling at 32,200mph (and Nasa didn't even see it coming)

http://www.dailymail.co.uk/sciencetech/article-5882903/Fireball-asteroid-smashed-Earth-detected-collided-planet.html?ITO=applenews

Dashcam footage shows the fireball glow dazzlingly bright in broad daylight

The four-metre rock leaves a trail of smoke that lingers for several minutes
It was first spotted by US sensors designed to catch nuclear explosions

   
Nasa warned last week of a vulnerability in its asteroid detection equipment

A motorist's dashcam has captured the incredible moment a powerful 'fireball' asteroid exploded above Russia.

The space rock was speeding at more than 32,000 miles per hour (52,000kph) when it fizzed over Earth, triggering a blinding flash across the early morning sky.

The four-metre-wide (13ft) object slipped past Nasa's asteroid warning systems and was first spotted by sensors designed to catch nuclear explosions after it struck the planet's atmosphere with a force of three kilotons.

Nasa warned last week of a vulnerability in its detection equipment that stops the space agency from picking out potentially deadly objects approaching from Earth's 'day side' until it is too late.

The flash caused by the explosion on June 21 was so bright it could be seen in broad daylight over several cities – including Lipetsk, which is southeast of Moscow.

Dashcam footage shows the rogue fireball glow dazzlingly bright in the space of a second before leaving a trail of smoke that lingers for several minutes.

Max.
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

R.R. Book

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #577 on: June 26, 2018, 05:55:34 AM »
Quote
The four-metre-wide (13ft) object slipped past Nasa's asteroid warning systems and was first spotted by sensors designed to catch nuclear explosions after it struck the planet's atmosphere with a force of three kilotons.

Nasa warned last week of a vulnerability in its detection equipment that stops the space agency from picking out potentially deadly objects approaching from Earth's 'day side' until it is too late.

So it took a 3 K-ton jolt to alert us to this...putting us on an equal footing with cavemen for successfully detecting some incoming objects?  :-X

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #578 on: June 26, 2018, 08:29:36 AM »
No sure we will “see it coming” .. until it’s too late.. ::) ???
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #579 on: June 26, 2018, 08:50:11 AM »
So it took a 3 K-ton jolt to alert us to this...putting us on an equal footing with cavemen for successfully detecting some incoming objects?  :-X

In spite of all of our modern technology...... LOL LOL LOL.   

In all seriousness, looking at the bigger picture, it's easy to see, as you point out, how we are really no better prepared than cavemen.   Our supposedly awesome technology has actually made most of us soft, and allowed us to think everything will be taken care of at all times, because we have all these support systems:  hospitals, SAC, EWS, CDC, and a seemingly endless list of acronyms for agencies who lead us to believe that "everything is under control" and when there's a problem it will be solved by the experts, so..."nothing to see here, folks, move along...."

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #580 on: July 02, 2018, 03:30:05 AM »
Good thing it wasn’t New York City ..  :o

A huge meteorite just splashed into the ocean, and scientists want to find it

By Mark Austin — Posted on July 1, 2018 - 10:52AM

https://www.digitaltrends.com/cool-tech/nautilus-hunts-for-meteorite/

Residents of Ocean Shores, Washington, were startled on the evening of March 7 when a bright flash lit up the sky and a tremendous boom rattled the sleepy seaside town. “They thought it was a spaceship,” local resident Brittany Bryson told the Seattle Times.

It wasn’t a spaceship, but it was definitely a visitor from outer space. From analysis of radar signals, Marc Fries, NASA Cosmic Dust Curator, concluded it was a meteorite about the size of a golf cart that broke apart and splashed down into the ocean about 16 miles off the coast. Approximately two tons of fragments are likely scattered over a half-mile of seafloor.

“This is easily the biggest recorded meteor fall in the United States in 21 years,” Fries said.

Max.
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #581 on: July 02, 2018, 07:38:12 PM »
Good thing it wasn’t New York City ..  :o

A huge meteorite just splashed into the ocean, and scientists want to find it

By Mark Austin — Posted on July 1, 2018 - 10:52AM

https://www.digitaltrends.com/cool-tech/nautilus-hunts-for-meteorite/

Residents of Ocean Shores, Washington, were startled on the evening of March 7 when a bright flash lit up the sky and a tremendous boom rattled the sleepy seaside town. “They thought it was a spaceship,” local resident Brittany Bryson told the Seattle Times.

It wasn’t a spaceship, but it was definitely a visitor from outer space. From analysis of radar signals, Marc Fries, NASA Cosmic Dust Curator, concluded it was a meteorite about the size of a golf cart that broke apart and splashed down into the ocean about 16 miles off the coast. Approximately two tons of fragments are likely scattered over a half-mile of seafloor.

“This is easily the biggest recorded meteor fall in the United States in 21 years,” Fries said.

Max.
If it had not broken apart, it seems it would have caused at least a minor tsunami, as two tons is no small thing.

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #582 on: July 06, 2018, 01:41:17 AM »
Soon everyone will be seeing the effects of PlanetX debris field ..

NASA scours Pacific Ocean for huge object that caused SONIC BOOM after falling from space

https://www.dailystar.co.uk/news/weird-news/714523/NASA-scours-Pacific-Ocean-meteor-caused-sonic-boom-space-Washington-video

NASA has sent a submarine to hunt for the remains of an object that fell from space, which caused a bright flash and boom as it entered the Earth's atmosphere.



On March 7, three National Oceanic and Atmospheric Administration (NOAA) weather stations detected the fall of what they believed to be a meteorite around 16 miles off the coast of Washington.

"The fall was widely seen around local areas and widely heard around local areas – it came with some loud sonic booms," Marc Fries, the cosmic dust curator for NASA, told Live Science.

Brittany Bryson, who was sitting in a fast-food drive-through when it happened revealed a bright flash filled the sky, followed by a boom so loud it rattled her car.

"We thought it was a spaceship," she admitted.

Max.
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #583 on: July 11, 2018, 08:21:14 AM »
Meteor fireball plunges into Mediterranean sea off the coast of Spain!!

https://www.sott.net/category/17-Fire-in-the-Sky

On July 9th, a meteor fireball was recorded over Andalusia and the Mediterranean Sea by YouTube user 'Meteors'.

    The event was produced by a fragment from an asteroid that hit the atmosphere at about 65,000 km/h!!

The meteorite would have fallen into the sea, with a mass of just a few grams.

Max
"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

 

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