Clipmarks | Meteorites Clips

meteorites for sale

Mon, 18 Aug 2008 00:17:37 GMT

clipped by: poophead

Clip Source: meteoriteforsale.toptenreviewed.com

LUNAR METEORITES
$2,500,000.00

THE EDWIN THOMPSON METEORITE AND TEKTITE LIBRARY
$50,000.00
$65,000.00

WORLD CLASS THUMBPRINTED NEW CAMPO METEORITE 300.7 LB
$9,499.00

GIBEON Meteorite 8.6 Kg "Casper Collection"
$10,000.00

Tags: meteorite, meteorites, meteorites for sale

IMPACT- Meteorite-Asteroid

Sun, 17 Aug 2008 06:01:52 GMT

clipped by: klippety
clipper's remarks: Perhaps a way to discover the defense against an Impact

Clip Source: web.mit.edu

MIT solves puzzle of meteorite-asteroid link

New analysis makes it possible to 'know our enemy'

For the last few years, astronomers have faced a puzzle: The vast majority of asteroids that come near the Earth are of a type that matches only a tiny fraction of the meteorites that most frequently hit our planet.

Since meteorites are mostly pieces of asteroids, this discrepancy was hard to explain, but a team from MIT and other institutions has now found what it believes is the answer to the puzzle. The smaller rocks that most often fall to Earth, it seems, come straight in from the main asteroid belt out between Mars and Jupiter, rather than from the near-Earth asteroid (NEA) population.

This fast track, it turns out, is caused by an obscure effect that was discovered long ago, but only recently recognized as a significant factor in moving asteroids around, called the Yarkovsky effect.

The new study is also good news for protecting the planet.

"It's the first step toward 'know thy enemy'."

Eyes on the sky: UFOs are real, whether the government admits it or not

Wed, 13 Aug 2008 04:31:36 GMT

clipped by: A53GG4

Clip Source: blog.mlive.com

Eyes on the sky: UFOs are real, whether the government admits it or not

Posted by The Ann Arbor News August 10, 2008 11:53AM

By Harry Willnus

The most recent UFO survey of Americans found that about 42 million of us have seen something in the sky that we couldn't identify. UFO researchers generally believe that about 90 percent of sightings can be attributed to natural causes such as meteorites, planets, birds, aircraft, satellites, or the moon shining through clouds. However, the remaining 10 percent of reports cannot be so easily explained away. The most intriguing reports often include close-encounter events (within 500 feet) with multiple witnesses who often are highly respected members of the community, such as police officers and pilots.

Other Voices

HARRY WILLNUS
The writer Harry Willnus is a retired educator who lives in Salem Township. He is a consultant with the Mutual UFO Network, which he has previously served as state director.

By UFOs I mean "flying saucers" or alien crafts.

Tags: ufo

Giant Impactor Theory

Sun, 27 Jul 2008 07:26:57 GMT

clipped by: balthazarus
clipper's remarks: what makes science attractive, is the ability to develop methods to test the solidity of the basic theories.
one has to wait and see what would be the impact

Clip Source: www.universetoday.com

New Instrument Could Reconstruct Planetary and Moon Origins

One of the leading theories for how our Moon formed is the Giant Impactor Theory, which proposes a small planet about the size of Mars struck Earth early in our solar system's formation, ejecting large volumes of heated material from the outer layers of both objects.

The new instrument, a plasma source mass spectrometer separates ions (charged particles) according to their masses and allows for a close examination of iron isotopes.

Previous studies of basalt found little or no separation of iron isotopes, but those studies focused on the rock as a whole, rather than its individual minerals.

The instrument was tested on the lava of Kilauea Iki crater in Hawaii.

If applied to a variety of terrestrial and extraterrestrial basalts, including moon rocks, meteorites from Mars and the asteroids, the method could provide more definitive evidence for a the Giant Impactor Theory, and provide clues the formation of Earth's continents

Tags: science, space, physics, theory

Asteroid heading our way

Fri, 25 Jul 2008 21:35:16 GMT

clipped by: sweetsfoods

Clip Source: www.russiatoday.com

SciTech

Asteroid heading our way

Astronomers are battling to work out the trajectory of an asteroid that will cause havoc if it hits the Earth in 2036. Called Apophis, the giant meteor is hurtling through space at 10km per second. Scientists are warning that an impact would be far more devastating than the atomic bomb dropped on Hiroshima at the end of WW2.

At the Zvenigorod Observatory near Moscow, space researchers keep watch on cosmic bodies and study known meteorites to understand their size and inner structure. They are tracking the path of the asteroid Apophis as well. They aim to determine how real the danger is but that will only be clear in a decade's time.

If Apophis passes through a particular point in space called a keyhole the Earth's gravity may change its course for the worst.

Meanwhile, Russia has offered to launch a space probe to plant a radio transmitter on Apophis so its orbit can be more accurately tracked.

Tags: science, space, astronomy

Bio-Earth: Are Planets Living Super-Organisms?

Sat, 12 Jul 2008 17:03:36 GMT

clipped by: papananook
clipper's remarks: Fascinatin article.

Clip Source: www.dailygalaxy.com

Japan's Maruyama Shigenori, one of the world's leading geophysicists, is working on a global formula for a vast new field of study that would include dozens of disciplines collaborating to produce an overall picture of the Earth.

Maruyama is creating a new institute called the Center for Bio-Earth Planetology will be launched in 2009 and fully dedicated to creating a new conception of life in space.He wants to find out if the continents will merge again in 250 million years to form a single super-continent; how meteorites change the chemical composition of the Earth; and what the connection is between the temperature of a planet and its magnetic field, which protects plants and animals from being bombarded with cosmic radiation, which in turn influences the rate of mutations and thus the development of new forms of life.

He believes that expanding the study of life sciences to the core of our world and the depths of outer space will help us find distant relatives of our own Earth

Bio-Earth: Are Planets Living Super-Organisms?

Fri, 11 Jul 2008 17:48:23 GMT

clipped by: Mohir
clipper's remarks: He believes that expanding the study of life sciences to the core of our world and the depths of outer space will help us find distant relatives of our own Earth -- planets that could also sustain life.
To explain why contintental plates drift on the surface of the Earth's molten mantle, Maruyama argues that continents actually have life cycles. Old, cold plates on continental fringes sink to “plate graveyards” deep in the Earth’s mantle, and then rise again, creating volcanoes fueled by three-dimensional convection movements deep below the surface.

Clip Source: www.dailygalaxy.com

As he connects the dots from astronomy to life sciences, the outlines emerge of an all-encompassing image of entire planets, which appear as living super-organisms.

Tags: planet, gaia, geophysics

The "Great Attractor": What's the Milky Way Speeding Towards at 14 Million MPH?

Fri, 11 Jul 2008 13:35:16 GMT

clipped by: tabsey

Clip Source: www.dailygalaxy.com

As he connects the dots from astronomy to life sciences, the outlines emerge of an all-encompassing image of entire planets, which appear as living super-organisms.

Tags: earth, as, an, organism, orgasm, obstacle, in, a, by-pass

Meteorite could hold solar clues

Sun, 22 Jun 2008 10:44:02 GMT

clipped by: tabsey
clipper's remarks: The solar system in a 705g rock.

Clip Source: news.bbc.co.uk

A rare type of meteorite that could hold clues to the birth of our Solar System has been bought by London's Natural History Museum.

The Ivuna meteorite, obtained from a US private collection, has the same chemical make-up from which the Solar System formed 4.5 billion years ago.

It landed in Tanzania in 1938 as one 705g stone, since split into samples.

Pieces from the UK sample, the largest in any public collection in the world, will be removed for study.

Most Ivuna samples are held in private collections, or by the Tanzanian government.

It's a particularly important specimen to science because it's been so well preserved

Ivuna's chemical make-up, which matches the Sun, is extremely rare - just nine of the 35,000 known meteorites, or 0.03%, have this solar composition.

Dr Caroline Smith, meteorite curator at the Natural History Museum (NHM), told BBC News: "These types of meteorite are very susceptible to alteration on Earth. Changes in humidity, for example, can change their composition.

Tags: who, is, throwing, these, rocks, at, us

Meteorite could hold solar clues

Fri, 20 Jun 2008 01:42:02 GMT

clipped by: fraynelson

Clip Source: news.bbc.co.uk

The Ivuna meteorite, obtained from a US private collection, has the same chemical make-up from which the Solar System formed 4.5 billion years ago.

Ivuna's chemical make-up, which matches the Sun, is extremely rare - just nine of the 35,000 known meteorites, or 0.03%, have this solar composition.

this meteorite is important as it fell relatively recently and has been kept under nitrogen in a sealed environment for the last two or three decades.

This is fantastic for the UK's meteorite experts. This material represents the crumbs from the foundation of the Solar System. It's an unbelievable opportunity to study it in close-up.

One question that Ivuna could help answer is how the chemical building blocks for life came to Earth.

Important components of so-called pre-genetic material, the amino acids b-alanine and glycine, were found in Ivuna in a 2001 study.

Were Meteorites the Origin of Life on Earth?

Thu, 19 Jun 2008 03:18:53 GMT

clipped by: spherepet

Clip Source: www.sciam.com

Were Meteorites the Origin of Life on Earth?

By JR Minkel

June 16, 2008

A new study finds that a pair of chemical building blocks similar to those in genetic material was present in a meteorite before it fell to Earth in the 1960s. Researchers say the finding makes it slightly more plausible that meteorite bombardments may have seeded ancient Earth with life's raw materials, potentially paving the way for life itself.

Part of the scientific mystery of how life emerged is the origin of chemical building blocks: Were they created by chemical reactions on Earth or did they, perhaps, hitch rides on meteorites that may have germinated

carbon-based compounds that most likely formed in space, including sugars and amino acids

nucleobases were forged in deep space, they were richer in carbon 13—by 44.5 percent for uracil and 37.7 percent for xanthine

building blocks of genetic material, the nucleobases, were available

meteorites contributed to the building blocks of life

very great contribution

Tags: meteorites, origin of life

Extraterrestrial Life Confirmed

Tue, 17 Jun 2008 13:32:57 GMT

clipped by: vk2yoc
clipper's remarks: I always knew I was different.

Clip Source: www.dailygalaxy.com

If you want to see the offspring of extraterrestrial interference in Earth evolution, you don't have to break into the X-files or start watching late night crazy-person public access. You could be looking at one in the mirror.

Early in Earth's history the surface suffered a heavy hail of meteorites. This is usually bad news for any lifeforms in the vicinity (if you don't believe me, just ask a velociraptor), but since even DNA was only a gleam in the ocean's eye at the time the space-rocks weren't a setback - in fact, they may have delivered vital ingredients to the rich pre-life soup on the surface.

A collaboration between various US and European institutes has proven the presence of vital nucleobases in the Murchison meteorite, an extraterrestrial rock fragment which impacted Earth in 1969.

These bases are unquestionably alien - for one, the rock-chemicals are equally left and right "handed"

the odds of life off-planet seem better than ever.

meteoric rise

Sat, 14 Jun 2008 03:11:57 GMT

clipped by: zadoz
clipper's remarks: this might explain why i sometimes feel like i from another planet

Clip Source: www.news.com.au

Humans could all be aliens

GENETIC material from outer space found in a meteorite in Australia may well have played a key role in the origin of life on earth, according to a study to be published on Sunday.

European and US scientists have proved for the first time two bits of genetic coding, called nucleobases, contained in the meteor fragment, are truly extraterrestrial.

Previous studies had suggested the space rocks, which hit earth about 40 years ago, might have been contaminated upon impact.

Both of the molecules identified, uracil and xanthine, "are present in our DNA and RNA," said lead author Zita Martins, a researcher at Imperial College London.

"We know that meteorites very similar to the Murchison meteorite, which is the one we analysed, were delivering the building blocks of life to earth 3.8 to 4.5 billion years ago," Martins said.

Tags: meteors

Fighter plane struck by U.F.O in Romania

Thu, 12 Jun 2008 07:03:48 GMT

clipped by: Shugi

Clip Source: livenews.com.au

Fighter plane struck by U.F.O in Romania

Defence chiefs in Romania are investigating claims that one of their MIG 21 fighter planes was struck by an Unidentified Flying Object.

The claims came from a leaked report revealed that the cockpit of the jet was shattered in the collision.

The collision is still a mystery to defence chiefs, and the investigation has been passed on to the Security Committee of European Air Forces.

Romanian defence ministry officials have ruled out a collision with "normal" objects such as birds and meteorites.

The incident was recorded on an in-flight camera as the plane was flying above Transylvania.

Tags: ufo

New Studies Show Microbial Hitchikers Can Survive Millions of Years in Outer Space

Mon, 19 May 2008 14:01:13 GMT

clipped by: tabsey
clipper's remarks: Microbes with interesting stories.

Clip Source: www.dailygalaxy.com

In a unique experiment on a galactic scale, millions of bacterial spores have been purposely exposed to space, to see how solar radiation affects them and the results supported the idea that not only could life have arrived on Earth on meteorites, but that considerable material has flowed between planets.

Closer to home, scientists have analyzed aerial dust samples collected by Charles Darwin and confirmed that microbes can travel across continents without the need for planes or trains - rather bacteria and fungi hitch-hike by attaching to dust particles. Their results clearly show that diverse microbes, including ascomycetes, and eubacteria can live for centuries and survive intercontinental travel.

In a paper published in Environmental Microbiology, Dr. Anna Gorbushina (Carl-von-Ossietzky University, Oldenburg, Germany), Professor William Broughton (University of Geneva, Switzerland) and their colleagues analyzed dust samples collected by Charles Darwin and others almost 200 years ago.

Tags: space