Comets & Meteors

[Gary Oak]

Siberia is a huge area
on this thread there are reports like this from all over the world.

[Renee]

Siberia is a huge area
on this thread there are reports like this from all over the world.

That's very true; asteroids hit our atmosphere constantly but it just seems that the ones that make the news more often than not, come out of Russia.

Didn't one explode over a town in the Urals a few years ago, that actually blew out the upper windows of a building?

Maybe it's the northerly location on the globe or the openness of the Russian step that makes these astral events more visible. Maybe it's just coincidence that the events are more spectacular over places like Siberia. Maybe it's just that not much goes on there regionally and stuff like this is big news.

It just seems a little odd.

[Gary Oak]

You very well could be correct. I had never noticed it before.

[Gary Oak]

This award-winning video reveals what would happen if an asteroid hit the ocean

http://www.businessinsider.com/animatio ... an-2016-12

[Blue Frost]

The Greenhouse gasses is determined where it hit the water also, methane hydrates off the coast of Florida, and other areas would be higher than mid ocean, or other places without them all together.
Also it is determined by how much rock is vaporized, and how deep water, and rock is.
They will never know till it happens.

[Gary Oak]

Two large meteors caught on camera in northwestern Russia (VIDEO)

https://www.rt.com/viral/373047-meteor- ... eo-russia/

[Blue Frost]

I lost the link, but supposedly we where almost hit the other night.

[Gary Oak]

I saw that but didn't have time to check out the article

[Gary Oak]

Check out this one minute forty second video. Even though it is filmed in daytime I do believe that it is the clearest and most detailed video of meteor on this thread.

UFO Fireball Filmed Hurtling Over Tasmania

Posted on March 1, 2017 by Sean Adl-Tabatabai in News, World // 2 Comments
UFO fireball filmed over Tasmania

Thousands of citizens witnessed a huge UFO fireball hurtling through the skies of Tasmania, Australia on Tuesday morning, as government officials attempted to explain the spectacle away as a airplane.

According to Airservices Australia, the enormous fireball was a plane “passing over Australian airspace”.

Herald Sun reports:

“This isn’t a bloody plane, wake up people. If it was a plane then damn that would be one burning big ass plane. Planes don’t leave flames so how bout you all open your f*****g eyes and get some perspective” wrote one passionate Facebook user.

Another sceptic wrote: “No the object in this pic wasn’t a plane in my opinion as it looked like it wasn’t even moving, we sat there and stared at it for like 10-15mins”.
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“man I read it was a UFO and sightings of landing with police sectioning the area off. Very hush hush stuff. Potential alien encounter,” a UFO believer wrote.

“omg where is it now?” another concerned Facebook user wrote.

David Finlay from Australian Meteor Reports said he had not received any reports of meteor activity over Tasmania.

fireball

Mr Finlay said the fireball was a jet contrail in the dawn light.

“It is not uncommon for people to mistake jet contrails for meteors, especially in the afternoon and in the western sky as the sun sets. I’ve watched some people looking at contrails who even thought they were seeing a comet,” Mr Finlay told The Mercury.

After watching a video of the “meteor” taken by Hobart resident Lee-Ann Peters, Mr Finlay reacted by saying: “a beautiful video of an A380 contrail.”

By checking Flight Radar data, Storyful was able to locate an Emirates plane bound from Dubai to Auckland, New Zealand. This flight was consistent with witness reports that the object was spotted over the Hobart area at 6.30am.

http://yournewswire.com/ufo-fireball-tasmania/

[Gary Oak]

If an asteroid this size were to hit earth would it be an extinction event ?

Asteroid size of 40 football fields to scoot by Earth in September

https://www.rt.com/viral/400244-asteroi ... september/

An asteroid the length of about 40 soccer fields will shoot by Earth this September. Hopefully NASA won’t need to deploy its planetary defense system, however, as the giant rock is not expected to pose a threat.
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Asteroid Florence, named after 19th-century English nursing pioneer Florence Nightingale, is on track to pass at a distance of 4.4 million miles (7 million km).

Tipped to be one of the largest asteroids to ever fly by Earth, the wandering space rock last took a similar path back in 1890.

READ MORE: Total solar eclipse: What you need to know (VIDEO)

“While many known asteroids have passed by closer to Earth than Florence will on September 1, all of those were estimated to be smaller,” Paul Chodas, of NASA’s Jet Propulsion Laboratory, said.

“Florence is the largest asteroid to pass by our planet this close since the NASA program to detect and track near-Earth asteroids began."

[video][/video]

[Gary Oak]

What a view. You can see it angle in and then out.

http://www.zerohedge.com/news/2017-11-1 ... ty-cameras

[video][/video]

[Gary Oak]

I wonder what that "thing" is ? It must be something. I only posted a little bit of the article.

NASA’s space station live feed goes offline again; just after the sighting of a glowing object moving toward Earth

Anyone who uses common sense to ask questions is now a ‘crazy conspiracy theorist’

Based on the rotating speed of the earth, it is difficult to truly pinpoint how fast the object in question was moving. Glockner mentions a speed of 85 miles per hour (mph) that was reported by other sources, but also notes that the earth’s relative spin in relation to the object could have indicated that the object was moving at a much slower speed than NASA is claiming.

“Speeds that are slower than even the slowest meteorites,” Glockner notes.

But NASA was quick to label it a meteorite and be done with it, even though the evidence is contrary. Glockner compared this latest footage to that of the 2011 Perseid meteor shower noting significant variances between the two events. This latest object was “short” and “stubby,” he notes, while almost all other footage of actual meteors reveals them to look quite the contrary.

https://www.naturalnews.com/2017-11-22- ... earth.html

[Gary Oak]

These two do look kinda cool





This one in China seems to me to have passed in and out of our atmosphere but when it was in it did go quite a deep ways in.

https://www.rt.com/news/428554-fireball ... meteorite/

[Blue Frost]

i wonder if it made it to the ground, some vaporize. It's funny how even a marble sized one can light up the skies like that.

[Gary Oak]

This odd meteor is the first with this odd shape too. Perhaps alien cloaking or camaflage is very advanced.



Interstellar object 'Oumuamua' is 'unexpectedly' speeding up, leaving Nasa scientists baffled

The first known interstellar object to travel through our solar system is unexpectedly speeding up, and scientists don’t know why.

Nasa have said observations from their Hubble Space Telescope have confirmed the interstellar object, Oumuamua, has had an “unexpected boost in speed and shift in trajectory as it passes through the inner solar system.”

Marco Micheli of ESA’s (European Space Agency) Space Situational Awareness Near-Earth Object Coordination Centre in Italy said: “Our high-precision measurements of ′Oumuamua’s position revealed that there was something affecting its motion other than the gravitational forces of the Sun and planets.”

The boost has left scientists scratching their head as to what could be causing the increase in speed, but early analysis shows some theories.

Analysing the trajectory of the interstellar visitor, co-author Davide Farnocchia of the Center for Near Earth Object Studies (CNEOS) at NASA’s Jet Propulsion Laboratory (JPL) said the speed boost was consistent with the behaviour of a comet.

He said: “This additional subtle force on ′Oumuamua likely is caused by jets of gaseous material expelled from its surface,”

“This same kind of outgassing affects the motion of many comets in our solar system.”



Karen Meech, an astronomer at the University of Hawaii’s Institute of Astronomy, said she was learning lots from the interstellar object’s behaviour.

She said: “'I’m amazed at how much we have learned from a short, intense observing campaign. I can hardly wait for the next interstellar object!"

Oumuamua, less than half a mile in length, now is farther away from our Sun than Jupiter and traveling away from the Sun at about 70,000 mph as it heads toward the outskirts of the solar system. In only another four years, it will pass Neptune’s orbit on its way back into interstellar space.

https://www.msn.com/en-ca/news/techands ... &ocid=iehp

[Blue Frost]

Gravity from objects will affect it, and speed it up, slingshot effect like swinging around Jupiter, or Saturn, or any other large object.
I find the size, and shape amazing, it's obviously a massive shard from an exploded sun, or planet.

[Gary Oaktree]

I would imagine that the NASA scientists have considered those ideas but yet they are “baffled”. You could be right but still something doesn’t make sense to the top experts. One has to have a PhD to work for NASA.

[Blue Frost]

I have no PHD, but studied cosmology for a time, and anytime something speeds up, or moves in a different direction the gravity of some object is responsible.
A theory I have is a super dense piece of stellar core could be responsible, and may be what is called dark matter now days.
It would be small, and not seen, but with a lot of gravity. You know with all the stars in history that exploded they have to be all over the place affecting stuff.

[Gary Oaktree]

I haven’t studied cosmology so thanks for the info.

[Gary Oak]

I imagine that if these chrystals were a bit bigger they would be precious gems. I am partial to the colour blue. I wonder if they are really such a deep light blue as in the picture ? If so then they would be beautiful if a bit bigger.

Blue Meteorite Crystals Reveal the Sun's Wild Youth





Ancient and rare blue crystals from the dawn of the solar system help confirm that the newborn sun was violently active, a new study reports.

Astronomers previously found that stars are typically incredibly energetic very early in their evolution. Scientists had suspected the same was true of the sun after it was born about 4.6 billion years ago.

"The sun was very active in its early life — it had more eruptions and gave off a more intense stream of charged particles," study co-author Philipp Heck, a curator at The Field Museum in Chicago, said in a statement. "I think of my son — he's three; he's very active, too."

However, proving this "early active sun hypothesis" is challenging because it is difficult to find material that recorded what the early sun was like and that also survived billions of years unscathed.

"Almost nothing in the solar system is old enough to really confirm the early sun's activity," Heck said in the statement.

To hunt for such evidence, the researchers analyzed samples from the Murchison meteorite, which crashed in 1969 near the town of Murchison, in the Australian state of Victoria. This meteorite, which is kept at The Field Museum in Chicago, dates to the early solar system and is renowned in the scientific community for its abundance of organic molecules.

As the giant disk of gas and dust that surrounded the early sun cooled down about 4.5 billion years ago, the earliest minerals began to form — microscopic, ice-blue crystals named hibonites, the largest of which were only a few times the diameter of a human hair.

"They are likely among the first minerals that formed in the solar system," study lead author Levke Kööp, a cosmochemist at the University of Chicago, told Space.com.

If the early sun spewed out lots of energetic particles, some of these should have struck calcium and aluminum in the crystals, splitting those atoms into smaller atoms of neon and helium. This evidence of an early active sun could have remained trapped unscathed within the crystals for billions of years and been incorporated into rocks that eventually fell to Earth for scientists to study.

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Blue Meteorite Crystals Reveal the Sun's Wild Youth
Artist's illustration of the early solar disk, with an inset image of a blue hibonite crystal, one of the first minerals to form in the solar system.
Credit: Copyright The Field Museum, University of Chicago, NASA, ESA, and E. Feild (STScl)
Ancient and rare blue crystals from the dawn of the solar system help confirm that the newborn sun was violently active, a new study reports.

Astronomers previously found that stars are typically incredibly energetic very early in their evolution. Scientists had suspected the same was true of the sun after it was born about 4.6 billion years ago.

"The sun was very active in its early life — it had more eruptions and gave off a more intense stream of charged particles," study co-author Philipp Heck, a curator at The Field Museum in Chicago, said in a statement. "I think of my son — he's three; he's very active, too." [Solar Quiz: How Well Do You Know the Sun?]

OTD in Space – July 30: Galileo Sees Saturn's Rings for the First Time

However, proving this "early active sun hypothesis" is challenging because it is difficult to find material that recorded what the early sun was like and that also survived billions of years unscathed.

"Almost nothing in the solar system is old enough to really confirm the early sun's activity," Heck said in the statement.

To hunt for such evidence, the researchers analyzed samples from the Murchison meteorite, which crashed in 1969 near the town of Murchison, in the Australian state of Victoria. This meteorite, which is kept at The Field Museum in Chicago, dates to the early solar system and is renowned in the scientific community for its abundance of organic molecules.

As the giant disk of gas and dust that surrounded the early sun cooled down about 4.5 billion years ago, the earliest minerals began to form — microscopic, ice-blue crystals named hibonites, the largest of which were only a few times the diameter of a human hair.

"They are likely among the first minerals that formed in the solar system," study lead author Levke Kööp, a cosmochemist at the University of Chicago, told Space.com.

If the early sun spewed out lots of energetic particles, some of these should have struck calcium and aluminum in the crystals, splitting those atoms into smaller atoms of neon and helium. This evidence of an early active sun could have remained trapped unscathed within the crystals for billions of years and been incorporated into rocks that eventually fell to Earth for scientists to study.

A tiny hibonite crystal from the Murchison meteorite.
A tiny hibonite crystal from the Murchison meteorite.
Credit: Copyright Andy Davis, University of Chicago
"While noble gases are often studied to evaluate irradiation histories of samples, nobody has tried this with hibonites before," Kööp said. "This is probably because they are very small, and also because they are rare and quite hard to recover from meteorites."

The scientists analyzed the crystals using a state-of-the-art mass spectrometer in Switzerland — a garage-sized machine that can determine an object's chemical makeup. A laser melted tiny grains of hibonite crystals, and the mass spectrometer then analyzed its contents.

The mass spectrometer was specifically designed to look for traces of noble gases, such as helium and neon. The researchers found a surprisingly large signal clearly showing the presence of helium and neon.

This may be the first concrete evidence of the sun's long-suspected early activity, the researchers said.

"It is exciting that we were able to find this noble gas record in hibonites, because it strongly supports the early-active-sun hypothesis," Kööp said.

There were previous hints that the newborn sun was more active than it is today, such as traces of radioactive beryllium-10 found in ancient meteorites. However, it was possible that such beryllium-10 was not generated by early solar activity but instead was inherited from the molecular cloud from which the solar system originated. In contrast, neon and helium are noble gases, meaning they virtually never react with other chemicals. As such, their presence in the hibonites suggests they were produced inside the crystals, as opposed to somehow getting trapped within the hibonites as they formed.

Future research on ancient meteorite crystals might help reveal details about the protoplanetary disk of gas and dust around the sun that ultimately gave rise to the planets, such as how hot or cold different parts of this disk were.

"For example, helium is a very light element and is easily lost from minerals during heating," Kööp said. "The presence of helium in the hibonites means that they were not heated much after they were irradiated."

The scientists detailed their findings online Monday (July 30) in the journal Nature Astronomy.

https://www.space.com/41325-newborn-sun ... stals.html