Fire in the SkyS


Meteor

Quirky Comet Hartley 2 Confounds Theories on Early Solar System

comet hartley 2
© NASA/JPL-Caltech/UMDThis close-up view of comet Hartley 2 was taken by NASA's EPOXI mission during its flyby of the comet on Nov. 4, 2010. It was captured by the spacecraft's Medium-Resolution Instrument.
The small Comet Hartley 2 is an oddball, for sure.

Two craggy bulges connected by a smooth waist (somewhat like a peanut), Comet Hartley 2 spews out more material than a comet just under a mile wide is expected to, a new study finds. And while most comets rotate slowly in one direction, Hartley spins rapidly as it tumbles.

Furthermore, Hartley 2 contains an inexplicable amount of carbon dioxide, causing it to burp and even hock ice loogies into space.

The unusual comet is raising questions over some longtime assumptions by scientists on how comets formed in the early solar system, said the scientists involved in the new study. [Photos: Close-Up Views of Comet Hartley 2]

The new Hartley 2 discoveries are based on the latest analysis of observations collected during a November 2010 flyby of the comet by NASA's Deep Impact spacecraft as part of its Extrasolar Planet Observation and Deep Impact Extended Investigation (EPOXI) mission. During the flyby, the Deep Impact probe approached within 431 miles (694 km) of the comet, snapping photos all the way.

Meteor

Meteor streaks over Central Texas, June 20th 2011

My meteor camera at my BuckSnort Observatory in Central Texas caught this bright fireball last night!


Meteor

"Just Found": Another Asteroid To Give Earth a Close Shave June 27, 2011

2011 MD
© JPL Small-Body Database Browser2011 MD's orbital parameters.
A newly discovered house-sized asteroid will miss the Earth by less than 17,700 km (11,000 miles) on Monday June 27, 2011. That's about 23 times closer than the Moon. The size and location of the asteroid, named 2011 MD, should allow observers in certain locations to take a look at the space rock, even with small telescopes. It's closest approach will be at 13:26 UTC on June 27.

According to Skymania, 2011 MD was found just yesterday, June 22, by LINEAR, a pair of robotic telescopes in New Mexico that scan the skies for Near Earth Asteroids.

As of now, asteroid 2011 MD is estimated to be between 9 to 45 meters (10 to 50 yards) wide. Dr. Emily Baldwin, of Astronomy Now magazine, said there is no danger of the asteroid hitting Earth, and even if it did enter the atmosphere, an asteroid this size would "mostly burn up in a brilliant fireball, possibly scattering a few meteorites."

Meteor

Best of the Web: Missing the big picture: U.S., Russia fight over asteroid "that could destroy Earth"

Image
© Unknown
Barely two weeks after the failure of a doomsday prediction by a United States (U.S.) based preacher, Russia and U.S. scientists are at war over another perceived threat to human existence.

The danger this time is not an apocalyptic occurrence, but the smacking of the Earth by a giant asteroid in five months time.

The potentially perilous space rock is known as Asteroid 2005 YU55, a round mini-world that is about 1,300 feet (400 metres) in diametre.

According to U.S. scientists, this asteroid will approach the Earth within a scant 0.85 lunar distances in early November.

Due to its size, and the way it will whisk by so close to the Earth, an extensive campaign of radar, visual and infrared observations are being planned.

Comment: We won't comment on NASA's blind and hardheaded wishful thinking here. It should be clear by now to everyone with two neurons firing that we can't rely on "scientific authorities" to provide us with straight and truthful answers, not to mention solutions. But we do want to comment on a tendency of scientific bodies and newspapers who quote them to miss the big picture and show abysmal ignorance when it comes to threats from space. It's one thing to ridicule the issue by zeroing in on loonies who declare that the end is nigh, but not doing proper research and seeing that the ongoing and increasing threat does exist, and in fact can have quite dire consequences for our civilization, is another.


Meteor

UK: Meteorite tears through roof of lorry, driver survives

Image
© dissexpress.co.uk
A removal man from Long Stratton believes that a meteorite tore a gaping three to four inch hole in the roof of his 18-ton lorry.

James Barber, 34, had parked his lorry at the Harleston base of international removal firm Hamiltons in Speedwell Way, and believes he heard the incident which caused the rupture happen as he made his way back to the vehicle last Saturday afternoon.

The hole, big enough to comfortably slip a mobile phone through, was done to one of the sturdy, metal-thick corner joints on the green non-articulated Mercedes Benz Axor lorry.

Mr Barber said: "After walking back out in the yard to the lorry, I heard an almighty bang.

"At first I thought a tyre on my vehicle must have exploded, but after giving the outside a once over, it looked like nothing had happened.

Meteor

UK: Meteorite Spotted in Eye, Norfolk

Responding to our meteorite story last week, Damian Harrold of Eye, called to say he saw a mysterious object tearing through the sky.

Last week we reported the hole that had been made in James Barber's truck in Harleston, who concluded it must have been a meteorite.

Mr Harrold said: "I think it could have been a meteorite.

"I put on Facebook at the time that I saw something going through the sky. I couldn't believe it when I read in the paper about the meteorite - I think it could have been the same thing.

"But nobody I spoke to at the time had seen anything at all. I wish I had taken my camera."

Telescope

Revealing the Secrets of Falling to Earth

Image
© ESA/NASAThe return of Jules Verne in 2008 was subjected to a detailed observation campaign
Late on Tuesday (GMT), a huge fireball will streak across the skies over the Pacific Ocean.

Not many will get to see it; it will be over an uninhabited part of the world, and ships and planes have been warned to steer clear of the area.

The event is the return from orbit of Europe's space freighter, ATV Johannes Kepler.

It has completed its mission at the International Space Station (ISS) and it's now time to come home.

The freighter took up more than seven tonnes of fuel and other supplies to the orbiting outpost, but for its return it has been packed with the platform's rubbish.

Little of the ship or this waste is actually expected to make it all the way to the surface of the Pacific Ocean. Most will simply vaporise in the intense heat generated during the descent through the atmosphere.

Meteor

You'll be able to see comet just discovered by University of Hawaii astronomers

Astronomers at the University of Hawaii at Manoa have discovered a new comet that they expect will be visible to the naked eye in early 2013.

Originally found by the Pan-STARRS 1 telescope on Haleakala, Maui, on the night of June 5-6, it was confirmed to be a comet by UH astronomer Richard Wainscoat and graduate student Marco Micheli the following night using the Canada-France-Hawaii Telescope on Mauna Kea.
Image
© University of Hawaii C/2011 L4

A preliminary orbit computed by the Minor Planet Center in Cambridge, Mass., shows that the comet will come within about 30 million miles of the sun in early 2013, about the same distance as Mercury. The comet will pose no danger to Earth.

Wainscoat said, "The comet has an orbit that is close to parabolic, meaning that this may be the first time it will ever come close to the sun, and that it may never return."

The comet is now about 700 million miles from the sun, placing it beyond the orbit of Jupiter. It is currently too faint to be seen without a telescope with a sensitive electronic detector.

Blackbox

U.S And United Kingdom To Cut Power In Preparation of 'Massive Solar Storm'?

In a stunning announcement, The United States and United Kingdom are likely set to begin "controlled" power cuts in preparation of a giant solar storm.

The announcement by Thomas Bogdan, the director of the US Space Weather Prediction Centre, comes a week after a large scale solar flare released a massive amount of radiation and threatened to cause moderate disruption.

The solar flare on June 7th, 2011 was luckily pointed away from Earth but caused many to wonder if another solar flare is imminent, this one aimed directly at earth.

Now, due to the possibility of a large scale solar flare, officials in Europe and the United Kingdom are preparing what they call, "controlled" power cuts. What this actually means remains to be seen.

In an interview with The Independent, Bogdam was quoted as saying, "controlled power "outages" will protect the National Electricity Grids against damage which could take months or even years to repair should a large solar storm collide with the Earth without any precautions being taken."

Interestingly enough, this information also comes just days after NASA sent out a preparedness warning to all employees and their families.


Comment: Perhaps the "massive solar storm" isn't truly their concern?

Cosmic Propaganda Alert! Comet Elenin: Just Passing By - With SOTT Commentary

The Hazard to Civilization from Fireballs and Comets

Meteorites, Asteroids, and Comets: Damages, Disasters, Injuries, Deaths, and Very Close Calls

Impact Hazards on a Populated Earth?

Just a note that the NASA 'Family Preparedness' video making the rounds in the last few days was actually released by NASA on September 13 last year (click 'most popular' and scroll down).


Meteor

US: Meteorite found in Colorado front yard

The front yard doubles as a play area for Carlos Martinez and his 7-year-old son. They play football and kickball together. Now they can add meteorite exploration to their list of front yard activities.


On Memorial Day, Martinez and his son were playing kickball when the ball rolled near some bushes. Martinez went over to retrieve it because he had seen a bull snake in that area the day before.

This time he didn't see a snake, but he saw a rock that got his attention.