Fire in the SkyS

Meteor

Laughable! Scientists Say Nuclear Bomb CAN Save Earth from Asteroid

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© Los Alamos National Lab/YouTubeBoom: This picture shows the effect that a one megaton nuclear blast would have on an incoming asteroid that threatened Earth
It sounds like a plot fit for a disaster movie - but this is real life.

Scientists say they have worked out a way to blast an asteroid into space dust using an atomic bomb.

The plan has potentially world-saving consequences should an asteroid emerge on a collision course with Earth.

And unlike the film Armageddon - where Bruce Willis and his crew of stars fly a space shuttle to an oncoming Asteroid to drill a warhead into its core - the nuclear payload could be delivered by rocket.

Using one of the world's most powerful supercomputers at Los Alamos National Laboratory, physicists have calculated the effect of a nuclear blast on an incoming space rock.

Although Nasa and other space agencies have mapped most nearby asteroids, the effect of one catching us by surprise would be catastrophic and, they believe, is worth preparing for.

Meteor

New Comet: C/2012 C2 (BRUENJES)

Cbet nr. 3019, issued on 2012, February 12, announces the discovery of a new comet (discovery magnitude 15.3) by Manfred Bruenjes on 30-s CCD exposures taken on two nights with a 0.36-m f/2.0 Schmidt-Cassegrain reflector on February 11.1 & 12.08. The new comet has been designated C/2012 C2 (BRUENJES).

We performed some follow-up measurements of this object, while it was still on the neocp. Co-adding of 5 unfiltered exposures, 30 seconds each, obtained remotely on 2012 Feb 12.8 through a 0.15-m f/7.3 refractor + CCD (Nerpio MPC Code - I89) confirms that this object is a comet: diffuse coma 1 arcminute and 30 arcseconds in diameter, with a sharp central condensation

Our confirmation image:

Comet Bruenjes
© Remanzacco Observatory

Meteor

New Comet: C/2012 C1 (McNAUGHT)

Cbet nr.3016, issued on 2012, February 11, announces the discovery of a new comet (discovery magnitude 18.8) by R. H. McNaught on CCD images obtained on February 5.5, 2012 taken with the 0.5-m Uppsala Schmidt telescope at Siding Spring. The new comet has been designated C/2012 C1 (McNAUGHT).

We performed some follow-up measurements of this object, while it was still on the neocp. Stacking of eight R-filtered exposures, 30-sec each, obtained remotely, from the Siding Spring-Faulkes Telescope South on 2012, Feb. 6.4, through a 2.0-m f/10.0 Ritchey-Chretien + CCD, shows that this object is a comet: coma about 5" in diameter, with a weak central condensation. The coma is slightly elongated toward the southwest.

Our confirmation image

C/2012 C1 (McNaught)
© Remanzacco Observatory

Info

Mystery of Britain's Largest Meteorite Solved

Meteorite
© The Open UniversityLikely the largest meteorite found in Britain, this one spans about 1.6 feet (0.5 meters) across and has been on Earth some 30,000 years.

With a weight that rivals a baby elephant, a meteorite that fell from space some 30,000 years ago is likely Britain's largest space rock. And after much sleuthing, researchers think they know where it came from and how it survived so long without weathering away.

The giant rock, spanning about 1.6 feet (0.5 meters) across and weighing 205 pounds (93 kilograms), was likely discovered by an archaeologist about 200 years ago at a burial site created by the Druids (an ancient Celtic priesthood) near Stonehenge, according to said Colin Pillinger, a professor of planetary sciences at the Open University.

Pillinger curated the exhibition "Objects in Space," which opens today (Feb. 9) and is the first time the public will get a chance to see the meteorite. The exhibition will explore not only the mystery that surrounds the origins of the giant meteorite, but also the history and our fascination with space rocks.

As for how the meteorite survived its long stint on Earth, researchers point to the ice age.

Meteor

Propaganda Alert! Space junk orbiting Earth threatens satellites, space exploration

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© File PhotoMeteors now posing as anthropogenic space junk?
Nighttime sky gazers looking for shooting stars sometimes catch a glimpse of a slower, brighter object streaking across the sky.

It's usually not a meteor, but rather a bolt or a paint chip that is part of the tons of debris floating in Earth's orbit, posing real dangers to space exploration.

A new film opening at Clark Planetarium on Friday called Space Junk 3D highlights some of those risks.

"What's the history of pioneers working through a new frontier? They leave behind stuff, it's what archaeologists find," said Seth Jarvis, director of the Clark Planetarium. "Space is the final frontier, and we're leaving behind stuff. The legacy of the space age includes footprints on moon, but it also includes orbiting clouds of litter that create a real challenge to orbiting activities."

Don Kessler, retired NASA senior scientist for Orbital Debris and star of the film, wrote a paper in 1978 predicting what will happen as more space junk filled Earth's orbit.

"I was trying to understand ... how long would it take before we had to worry about manmade objects colliding with one another," Kessler told The Tribune.

The answer: Right about now.

In 2007, China's military performed a test of an anti-satellite weapon. It worked, taking out a satellite and creating a massive debris cloud that will orbit for hundreds of years. Two years later, two satellites collided, again forming a huge debris cloud that puts other satellites, rockets and other space vehicles at risk.

Comment: Our immediate cosmic environment IS probably littered with junk left there by certain governments who live by the maxim that the means justify the ends. But it is the height of denial to buy into the notion that all these reports of fireballs we've been collecting are man-made objects. This 'space junk' theme is starting to smell strangely like 'anthropogenic global warming', which provides a plausible - but 'not even wrong' - cover story for Earth changes.

Forget About Global Warming: We're One Step From Extinction!


Meteor

Reports of fireball with huge tail seen over Western Australia

5 Feb 2012: 'sas' Perth - 01.10am 10 sec. Australia - Yellowish huge yellowish shooting star not that I saw. No photo

5 Feb 2012: 'Rhett' WA Kalgoorlie - 1:05:00 15 seconds. N-S, Green As the moon N/A I've never see anything like it, it had a huge tail.

5 Feb 2012: 'dan' perth, WA, Australia - 1:18 15 seconds. N-S, orange, blue, yellow brighter than moon, larger than moon none massive, bigger than moon.

5 Feb 2012: 'Tara Isaac' Perth, Western Australia - 01.10 hours approx 20 secs. E-W, Large, bright green fiery head, long white tail. Brighter than Venus. No photo, seen while driving freeway North

Meteor

East coast of US lights up as another enormous fireball streaks through sky

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© lunarmeteoritehunters.blogspot.comKudos to http://lunarmeteoritehunters.blogspot.com for putting this map of eyewitness reports together. The Neon Markers are Sighting Reports and the Red Circle Markers are Allsky Camera Locations. Hopefully one of them picked up visual of this fireball.
More than 100 people from New Jersey to North Carolina reported seeing a bright streak of light with a tail shooting through the night sky late Friday.

"It looked a lot brighter than a shooting star," German Osorio wrote on InsideNova.com's Facebook page. "Maybe only a few hundred feet up and it had that color that propane gets when it burns."

Kseniya Ledbetter of Fairfax said she spotted the fireball as she drove along Braddock Road east of Va. 28 around 10:15 p.m. "The most beautiful thing I ever saw! It was changing colors and then went out right above Hampton Chase neighborhood."

NASA, the FAA and the National Weather Service have yet to weigh in on the sky phenomena, but the website "The Latest Worldwide Meteor/Meteorite News" had more than 100 posts Saturday about the fireball from people in Virginia, New Jersey, New York, Maryland and North Carolina.

The American Meteor Society had 56 reports of a fireball sighting, again from New Jersey to North Carolina. Most reports came from Virginia and Maryland.

"Big and blue with a red tail. Looked like a meteor to us," Jessica Guido of Stafford wrote on our Facebook page.

Witnesses reported seeing the fireball between 10 and 10:30 p.m. All described it as very bright and very low.

"It was awesome, bright as could be with a hint of blue green," wrote Michele Janke, who saw the fireball along Prince William Parkway.

Comment: Reports of fireball with huge tail seen over Western Australia

Huge Fireball Over Tokyo, 2 February 2012

Fireball Photographed Over Corfu, Greece

Russia: Something fell from the sky in the village of Novobureysk

US: Wednesday night's Texas meteor so bright it was seen in Kansas

Canada: Halifax 'fireball' probably a meteor

Rhode Island, US: Extremely bright 'unexpected' meteor caught on camera


Meteor

Huge Fireball Over Tokyo, 2 February 2012


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Fireball Photographed Over Corfu, Greece

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© Bill Metallinos
The photo above showing a startling fireball appearing to rip apart the night sky was seen during a star observation session at Mount Pantokrator on the Greek island of Corfu. I had set my camera up to get a picture of our small group and before long this brilliant meteor lit up the surrounding landscape. It was approximately -8 magnitude or about 25 times brighter than Venus at its brightest -- so bright that we were bathed in a sea of blue-green light. You can see the reflection on my 16 in (41 cm) telescope, on the table at right-center and on the side of my car. Click here to see a short animation.

Photo details: Canon EOS 40D camera; 15mm fisheye lens; f/2.8; ISO 800; 30 second exposure; Photoshop; Cropped.

Meteor

Russia: Something fell from the sky in the village of Novobureysk

Car's DVR camera captured a UFO. A glowing object fell from the sky on the outskirts of the village Novobureysk. The footage shows the date and time: January 22, 2012, 9:10.