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Fireballs

Fireball 2

Meteor seen entering Oman atmosphere; explosions heard

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© Shutterstock
Meteor like unidentified object did enter the Sultanate's atmosphere on Wednesday night, however it is not clear whether it landed in Oman or not, according to Saleh Al Shidhani from the Oman Astronomical Society, Locals in Wilayat of Yanqul in Al Dhahira Governorate reported that they witnessed Meteor like object and also heard the crash.

Speaking to Times of Oman, Saleh Al Shidhani from the Oman Astronomical Society, said, "Based on the information we have gathered currently, we can't confirm whether it was a meteorite or not."

"We are also not sure whether it landed in Sultanate, but it definitely passed through the atmosphere. But we don't know where it landed exactly," he further added, saying that the object passed through Al Dhahira Governorate and probably continued to the United Arab Emirates.

"The villagers had conflicting stories where some of them said they had heard the explosion when others denied it. We will send a team to that region and question the witnesses and investigate the matter," said Al Shidhani.

Comment: See also this other recent report: Sott Exclusive: Meteor fireball explodes over eastern Turkey, sending shower of meteorites to the ground


Fireball 2

Meteor filmed by Washington Monument camera

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© NASA Meteor Watch Facebook
A bright meteor was seen shooting through the sky Tuesday night and a camera located on the Washington Monument captured its movement.
A bright fireball streaking across the sky Tuesday night was captured on camera from the Washington Monument.

According to NASA's Meteor Watch, the fireball was seen in Virginia, Maryland, Pennsylvania, North Carolina and West Virginia around 9:27 p.m. It moved east to west and appeared to be orange, according to witness reports on the American Meteor Society's website.

An "Earthcam" on the Washington Monument captured the meteor's race through the sky.

According to the American Meteor Society, fireballs are very bright meteors, about as bright as Venus in the morning and evening skies.

About 10 to 15 meteorites fall to Earth each day, but sightings are rare since streaking fireballs often fall over the ocean, or during daylight hours when they can't be seen.

Fireball 2

Photographer captures fireball against the Northern Lights in Finland

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© MARKUS KIILI
Photographer Markus Kiili was lucky enough to capture this stunning photo
The incredible images show a bright white line hurtling through the green and blue sky, in a rare moment which was visible for just a few seconds.

Photographer Markus Kiili was fortunate enough to not only witness the beautiful event - but also capture it on TWO cameras.

The 40-year-old cameraman was shooting a time-lapse video in Lapland, Finland, with two cameras last night when he witnessed the stunning sky.

Fireball

Massive meteor fireball witnessed in Thailand, explosions heard

Fireball over Thailand
© Porjai Jaturongkhakun / YouTube
A massive fireball, believed to be a meteorite, has fallen on Thailand. Awestruck commuters witnessed the spectacle, describing a green and orange glow, as it took a nosedive toward Earth.

The event took place during the morning rush hour at about 8:45am local time in Bangkok, although the meteor did not make an audible sound as it struck the ground.


Fireball 4

Over fifty reports of fireball visible over English Channel

The American Meteor Society and the International Meteor Association received over 50 reports so far about a fireball event over the English Channel on August 30th 2015 around 19:30UT. Observers from as far center of France reported seeing a bright light in the sky. Below is a heat map of the witness reports.
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The preliminary estimated trajectory plotted from the witness reports shows the meteor was traveling from the south east to the north west and ended its (visible) flight few miles south of Brighton, UK.
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Fireball 5

Researchers use lasers to manipulate spin of 'asteroid' in simulated experiment

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© UC Santa Barbara/Vimeo
Researchers have honed laser technology to be able to slow, stop, and reverse the rotation of an asteroid-like target in a simulated space environment. The findings could potentially help deflect Earth-bound asteroids in the event of a major-impact threat.TagsEducation, SciTech, Science,Space

The DE-STAR (Directed Energy System for Targeting of Asteroids and exploRation) can, among other uses, stop the rotation of a spinning asteroid, according to small-scale, graphic demonstrations by the Experimental Cosmology Group, led by UC Santa Barbara physicist Philip Lubin and Gary B. Hughes, a researcher and professor at California Polytechnic State University-San Luis Obispo.

In order to simulate the laser's deflection capabilities, researchers used basalt, which is composed of materials similar to those of an asteroid. The team directed a laser at the basalt until it began to turn from a mineral to a gas. As the "asteroid" lost mass, it became a propellant.

"What happens is a process called sublimation or vaporization, which turns a solid or liquid into a gas," said Travis Brashears, a student at the University of California-Berkeley involved in the research. "That gas causes a plume cloud — mass ejection — which generates an opposite and equal reaction or thrust — and that's what we measure."


Magnets were used to spin the basalt, simulating a rotating asteroid. The laser system was also used to slow the rotation of the target.

Comment: This technology is likely being developed for reasons other than space exploration and mining asteroids.


Fireball 2

Did a bright fireball crash to earth close to Ashbourne in the UK?

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Did a bright meteor crash to earth close to Ashbourne last night? STOCK PHOTO
The News Telegraph has been contacted by reader Michelle Brooks to find out if anyone else saw a possible meteorite crash to earth last night.

Michelle said she saw a bright, fast moving fireball streak across the night skies close to Waterhouses.

She said: "It happened about 11.20pm.

"My front room window faces directly North and I guess the position was NNE .

"t was low and the 'ball' disappeared behind a rooftop the tail disappeared very quickly as normal.

"From my perspective I'd say it was football sized not a tiny pin prick we usually see.

"It was also very low indeed, not far from horizon when it disappeared from my view behind a rooftop in the distance."

Meteor

Unusual streaks of light seen in Hawaii skies

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© Reed Shook
Many residents across the state observed unusual streaks of light or a "fireball" over Hawaiian skies late Sunday night, raising questions about what it could possibly be.

People from Kona to Oahu's North Shore thought it was a meteor or government experiment. Turns out, it was just junk. Space junk. An abandoned Russian spy satellite -- the Cosmos 1315 -- which launched in 1981 fell to earth, burning up as it did.

"When it starts to re-enter the atmosphere its going about 18,000 miles an hour," says University of Hawaii astronomer Richard Wainscoat, "A lot of it is going to get vaporized but if there are really big pieces then some of them may make it down to the earth's surface."

Wainscoat actually missed the spectacular event.
"I'm pretty annoyed that I was asleep when this happened."


The sighting also created a lot of buzz on the Hawaii News Now Facebook page with dozens of users posting videos and photos of the curious event.

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© Nuran Dada

Comment: See also:


Fireball 4

Early morning fireball over St. George, Utah

Fireball
© Stock image/St. George News
St. George — Reports came in to the Utah Highway Patrol Cedar City Dispatch Center Friday describing a fireball streaking across the sky south of SunRiver St. George just before 7:30 a.m.

A fireball occurs when a meteor enters Earth's atmosphere and burns brightly before being consumed by the fire, and is defined by the American Meteor Society as an object that is brighter than the planet Venus.

The American Meteor Society received reports from three observers in Lake Havasu City, Arizona, Flagstaff, Arizona, and Pahrump, Nevada, of a fireball about the same time as the Southern Utah sighting. San Diego-based Robert Lunsford, the report coordinator for the AMS, said it was probably the same object, but it likely burned up in the atmosphere before hitting the ground.

Arrow Down

Cosmetic and cleaning products contain huge quantities of plastic particles posing serious risk to marine life

microplastic
© Thompson/Bakir/Plymouth University
This image captured by an electron microscope shows polyethylene microbeads widely used in shower gel.
Everyday cosmetic and cleaning products contain huge quantities of plastic particles, which are released to the environment and could be harmful to marine life, according to a new study.

Research at Plymouth University has shown almost 100,000 tiny 'microbeads' -- each a fraction of a millimetre in diameter -- could be released in every single application of certain products, such as facial scrubs.

The particles are incorporated as bulking agents and abrasives, and because of their small size it is expected many will not be intercepted by conventional sewage treatment, and are so released into rivers and oceans.

Researchers, writing in Marine Pollution Bulletin, estimate this could result in up to 80 tonnes of unnecessary microplastic waste entering the sea every year from use of these cosmetics in the UK alone.

Comment: Microbeads are highly potent concentrators of toxins. Tiny marine creatures often mistake these particles for food, and these plankton are eaten in large numbers by other fish. These chemicals then biomagnify up the food chain, meaning that top predators such as tuna and swordfish, which are consumed by humans, have high concentrations.